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Favourite Numbers - Numberphile
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11 жыл бұрынEveryone's details below in full description. Please leave a comment about YOUR favourite number!!!
More links & stuff in full description below ↓↓↓
Thanks KZfaq EDU people.
This video featured in order:
Brady Haran (who makes Numberphile): www.bradyharan....
Derek Muller chose i - / 1veritasium
Hank Green chose 2 - / scishow
Steve Spangler chose 13 - / thespanglereffect
Michael Stevens chose 17 - / vsauce
Angela chose 7 - / education
Alex chose 27 - / lexie527
Destin chose 21 - / destinws2
Mike Rugnetta chose 1024 - / pbsideachannel
Caitlin chose 16 - / education
John Green chose 37 - / crashcourse
Henry Reich chose j - / minutephysics
Patrick chose 1729 - / patrickjmt
CGPGrey chose 0 - / cgpgrey
Vi Hart chose * - / vihart
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@hannahl3456 8 жыл бұрын
I didn't know that cgp grey was actually a tree
@monkeyorful 8 жыл бұрын
damn... I was going to make a joke about how the tree liked zero, not fast enough xD
@hannahl3456 8 жыл бұрын
Penny Train Yeah i can tell :)
@q1w2e3621 8 жыл бұрын
+
@nerdiconium1365 7 жыл бұрын
So many people are just playing along with this terrible joke
@jalexander9520 7 жыл бұрын
How did you not know this?
@romekhanna 4 жыл бұрын
Legends says Vsauce is still giving reasons why he loves 17..
@MrSidhuds 3 жыл бұрын
He could have said there are 17 elementary particles in the standard model
@LordNaver 3 жыл бұрын
No after the 16th reason, he said I have 17 reasons why I like 17.. and stopped after that.. kindof had to
@AWholeLottaLola 11 ай бұрын
_17 is my fav number too_
@eier3252 5 жыл бұрын
¹²√2, because it's the factor used to step up/down one half tone in music, and because you rarely have constants with a root of such a high degree
@aloysiuskurnia7643 3 жыл бұрын
*Pythagoras rolling in his grave*
@TheCastagne 3 жыл бұрын
What about microtonality? :P
@aldobernaltvbernal8745 3 жыл бұрын
depends on the tuning system
@aldobernaltvbernal8745 3 жыл бұрын
also 12 tone equal temperament is slightly out of tune
@Maydup_Naem 3 жыл бұрын
@CogitoErgoCogitoSum Nope. The 12th root is based on doubling of octaves itself. Multiply a frequency by two and you'll get an octave. Divide the octave by 12 and you'll get the 12 notes in the cromatic scale. For them to be equally spaced, you have to, every time, multiply them by a number such that, when done so 12 times, it equals 2. Thus, we get the equation x^12=2. The only real awenser is the number used (12th root of 2). Unless an instrument uses only octaves or uses microtonal scales (both of which are rare), It will use this number.
@xilorphone 4 жыл бұрын
6. The factors of 6 are 1, 2, & 3, which, when added together equal 6, which makes it a “perfect number.” Plus, 1, 2, & 3 are consecutive numbers, which is just awesome. I also just like the feel of the number.
@findystonerush9339 Жыл бұрын
6=3! 6!=720
@djisar-official 7 жыл бұрын
9.81 is a number that keeps me grounded
@Npvsp 7 жыл бұрын
djisar 9.80665
@djisar-official 7 жыл бұрын
LOL :-P
@MrPoutsesMple 7 жыл бұрын
white bear or brown bear?
@AllonsyRapunzel 7 жыл бұрын
This joke has a lot of potential
@Oraclethingy 7 жыл бұрын
I don't get it......
@prateekgurjar1651 7 жыл бұрын
...Cgp grey is a tree, i knew it all along.
@prateekgurjar1651 7 жыл бұрын
69 likes
@eleutheriakouin 7 жыл бұрын
Prateek Gurjar syke! i liked....now it's 70
@theeyeofendorgamer 7 жыл бұрын
hold on I'll dislike this to bring it back to 69
@eleutheriakouin 7 жыл бұрын
EyeofEndor Gamer 😂😂😂
@prateekgurjar1651 7 жыл бұрын
EyeofEndor Gamer I disliked it to make it 69 again
@matthewstuckenbruck5834 5 жыл бұрын
"You don't pick the winning team, you pick the underdog." Minutephysics is a flat-earther.
@roiepeles7831 4 жыл бұрын
?????
@taysem321 4 жыл бұрын
@@roiepeles7831 if he would choose a team - round-earthers or flat-earthers, he'd pick the underdog...
@mk_rexx 4 жыл бұрын
No, he is a sheep-earther.
@Ascension721 2 жыл бұрын
the true under dogs are octagonal earthers
@Blananas2 5 жыл бұрын
"Having a degree in computer science, it has a... magical quality about it." Dude just say it's a power of 2.
@RubyBfb 4 жыл бұрын
Why are you here :/
@ebentually 4 жыл бұрын
I actually think 256 or to be correct 255 is way cooler cause it is a full byte.
@funni111 4 жыл бұрын
@@ebentually 0 to 255 is also used to describe intensity of colour in programming so their are total 256 intensities
@Seltyk 4 жыл бұрын
Being a computer scientist, there's something about 1024 in particular that feels like more than just a power of 2, in part because of how it's used as the computing equivalent to SI increments
@BradyPostma 3 жыл бұрын
It's a base-10 power of 2. It speaks to the interaction of computers and humans, of binary and decimal. A purely binary round number would be more like 2^16 instead of 2^10.
@juanpedro19840914 8 жыл бұрын
My favourite number is 4 because of the following reason: 2+2=4 2*2=4 2↑2=4 (Exponential) 2↑↑2=4 (Tetration) 2↑↑↑2=4 2(↑n)2=4 (where «n» is any positive integer number) I find this amazing! :D
@coopergates9680 8 жыл бұрын
+Juan Pedro Romero 1x = x x^1 = x x↑↑↑1 = x x↑↑......↑↑↑1 = x but x+1 > x hahaha
@juanpedro19840914 8 жыл бұрын
Cooper Gates Yes, I have always been concerned about that as well. Hahaha.
@juanpedro19840914 8 жыл бұрын
I have another favorite number, which is 25. Both numbers 4 and 25 are perfect squares, and they are somehow related because 4*25=100. When speaking about percentages, this becomes important. I don't know; I have always liked this two numbers since I was a child, even before figuring out about all this.
@coopergates9680 8 жыл бұрын
+Juan Pedro Romero Dozenal: 4*30 = 100, 30(doz.) = 36(dec.) = (2*3)^2 = 6^2; I like base thirty-six a lot, twenty-five hasn't been exciting haha
@Cerise4697 8 жыл бұрын
+Juan Pedro Romero 4 is my fave too! It's always been my fave since I was a baby, for some reason. It was such a square, perfect number, and it looked like an elegant dancer, to boot. :)
@MrTohawk 8 жыл бұрын
My favourite number is x. Cause you never know.
@SoulmongerV2 8 жыл бұрын
It's not a number though.
@raffiking1 8 жыл бұрын
if 'j', 'i' and 'star' are numbers, then 'x' is too
@SoulmongerV2 8 жыл бұрын
Nope. j, i and * have defined value (in context). x is a variable.
@zeamae7649 7 жыл бұрын
MrTohawk Thirteen is my favorite number,I always get lucky If there is someone relating to 13,yes I'm talking Friday the thirteen here
@ElectricGeckos 7 жыл бұрын
I can solve for x, so I will know eventually.
@Sdawkminn 6 жыл бұрын
Mine has always been 3. It's a triangle number, it's simple, we always count to it to get ready for something, Raphael's sighs have 3 prongs. There are lots of everyday and fundamental things that involve 3.
@elnico5623 3 жыл бұрын
It's the minimum number of legs a structure needs to ensure stabilty, also is more stable than 4, a table with 3 legs will never wobble lile a 4 legged table might
@thenungod 3 жыл бұрын
wat about 6 or 1 or 10 or 15 or 21 or 28 or 36 or 44 or 55?
@zeezaa 6 жыл бұрын
3:06 "i do that with my ones too" *didnt have it in his writing*
@Cubinator73 7 жыл бұрын
I am wondering, that noone actually picked some irrational numbers like pi, e or phi. My favorite number is 73, because it has so many interesting properties: > 73 is the 21st prime. Its mirror, 37, is the 12th prime (emirp number). 21 is also the product of the digits of 73, which are also primes. > 73 in binary 1001001 is a palindrome, which has 7 digits and 3 ones. Its digits in binary are 111 and 11, which are also palindrones. > 73 in octal is 111 and its the only prime that can be written with repeating ones in octal. > 73 in base 36 is 21 (index in prime sequence) > Its roman representation LXXIII contains 3 different numerals of the 7 possible numerals. > 73 is a star number, so you can form a star by placing 73 dots in a very specific way.
@Cubinator73 7 жыл бұрын
Where did I write 21th? :D
@audiblemagician6751 7 жыл бұрын
How did you found all that out :3
@Cubinator73 7 жыл бұрын
+Audible Magician 5 minutes on the English and the German Wikipedia. en.wikipedia.org/wiki/73_(number) de.wikipedia.org/wiki/Dreiundsiebzig
@r.m.sashank5722 7 жыл бұрын
amazing
@Veptis 7 жыл бұрын
my 72 is coming a little short.... but it got so many ways to write as two factors. so star numbers. how does this really work? is 4 or 8 a star numbers like this? is it 5 or 10?
@domy6827 7 жыл бұрын
I like 1023 because I can count up to that on my ten fingers.
@stefanowohsdioghasdhisdg4806 6 жыл бұрын
Binary is very fun to count in.
@d4670 6 жыл бұрын
Smart...
@neil7250 6 жыл бұрын
Isn't it 1024?
@frogstereighteeng5499 6 жыл бұрын
Iunel kirklin Counting 0, it is 1024.
@josgeerink9434 6 жыл бұрын
+Leo Lundby Murigu I know
@cheesecakelasagna 6 жыл бұрын
Michael is memeing too hard all throughout the video. I love it.
@Conradd23 6 жыл бұрын
132, because if you count to 132 on your hands in binary, then you're flipping a double bird.
@ZomB1986 6 жыл бұрын
The number of columns in high-res text modes of DOS computers.
@madeyeloony2047 6 жыл бұрын
Francis Baumann i Like that one too
@mahdibnhussein4882 6 жыл бұрын
This will appears like this: 00100 00100 (Where 0 is a closed finger and 1 is an opened finger)
@Mekhanejunkins 4 жыл бұрын
Mine is 0 because its break all the rules like me
@csicee 2 жыл бұрын
645 and youre flipping them off with thumbs
@sherwin1305 7 жыл бұрын
CGP Grey should make another channel called CTreeP Grey.
@LSqre 6 жыл бұрын
I was hoping Vi would say "Triangle"
@batonator 6 жыл бұрын
Bpenguin06 펭귄 triaaangle
@robertnett9793 6 жыл бұрын
Yep, for about 1000 times :D
@fee8422 6 жыл бұрын
Snakesnakesnakesnakesnake?
@johnberns8917 6 жыл бұрын
Same.
@StarTheTripleDevil 6 жыл бұрын
Wait, Vi Hart's favorite was star. In another video featuring a lot of KZfaqrs, Vi Hart drew a bunch of triangles. Star x Illuminati is Vi Hart's OTP confirmed!
@akbaer60 6 жыл бұрын
I thought vihart was an equilateral triangle.
@varunrmallya5369 3 жыл бұрын
I love e, the Eulers number. Whenever I see e popping up somewhere I think the universe is telling me that there's more to its symmetry than what we currently know of. I especially love the fact that the slope of a graph of e is e. It's just the most perfect number to my soul
@timurkotulic3948 2 жыл бұрын
Well technically, the slope of a graph of (y=e) is 0...
@aaronspeedy7780 2 жыл бұрын
So you mean e^x?
@UmeshPathak0911 7 жыл бұрын
I want that piece of cardboard
@lukaskluger5141 7 жыл бұрын
-1/12 because i like natural numbers
@johanhi2 7 жыл бұрын
Lukas Kluger I see what you did there ;D
@kamehamehaDdragon 6 жыл бұрын
There is no way that sums to - 1/12!! XD
@absurdemtiefer1950 6 жыл бұрын
zeta(s)=sum(1/n^s) , n ist every number between 1 and infintity , in steps of 1 . but s has to have a complex part (a+bi). It is call the Riemann Zetafunction , look it up its great.
@Jmanstar171996 6 жыл бұрын
if you make assumptions
@mk_rexx 6 жыл бұрын
NO, YOU'RE MAKING MATHEMATICIANS MAD
@OddBunsen 6 жыл бұрын
I have the same thing with sharpness! When I try to describe which ones are sharp after 21 it just gets kind of weird, but the powers of two are definitely the roundest.
@knowingpigeon3142 6 жыл бұрын
ε. ε (infinitesimal) is the smallest possible number, but at the same time isn’t. It’s flakiness reflects my life. See the numberphile video on infinitesimals for more info.
@wurttmapper2200 5 жыл бұрын
What about that number divided by two?
@NateROCKS112 4 жыл бұрын
There are no infinitesimals in the real numbers. It's used in the definition of the limit to basically take advantage of this fact, called the Archimedian Property. You also need to include delta for a delta-epsilon definition. You're basically saying, for example, "this infinite sum isn't less than 2 or greater than 2; thus, it must be 2." Nonstandard analysis works, but even in that, if I recall, there's no concept of the smallest number, because otherwise calculus wouldn't work. This is because nonstandard analysis "real numbers" can contain more cardinalities than just Aleph-1.
@MegaDutchuch 10 жыл бұрын
CGP tree.
@jessicadarling369 8 жыл бұрын
Phi! I'm an artist and designing around it makes for such pleasing compositions. Its non-obvious relation to sqrt(5) (and thus its tangential relation to the pinwheel tiling), the elegant compass and straightedge construction of the ratio, and the way it shows up multiple times in a five-pointed star (and thus its relation to penrose tilings) are all super cool too. Just the idea that ϕ - 1 = 1/ϕ is pretty mindblowing. And last but not least, as a direct consequence of its status as the most irrational number (even though the idea that some irrational numbers are more irrational than others is VERY unintuitive), it makes for very efficient packings of objects, which is exactly why it shows up in sunflowers and such.
@joefaber4397 5 жыл бұрын
10! Because 10! Seconds are 6 Weeks
@sulfurx777 4 жыл бұрын
Really?
@deekshas3936 4 жыл бұрын
@@sulfurx777 Yes, there is also a Numberphile video about this.
@lightspeed9762 4 жыл бұрын
@@sulfurx777 Factorial
@sulfurx777 4 жыл бұрын
@Prassax, I know.
@lightspeed9762 4 жыл бұрын
@@sulfurx777 Then Im so glad you know :D
@MrTLSfan 5 жыл бұрын
e, definitely e. it has such amazing properties and uses it feels like e somehow lifts the veil between the world that we see and the world that is just a little bit, enough for a glimpse at what lies behind
@wolflordy3193 4 жыл бұрын
I was hoping I'd see someone else with this as their favorite!
@ShantanuAryan67 7 жыл бұрын
my favourite number is illegal
@toxic-L 7 жыл бұрын
Ikr
@suwinkhamchaiwong8382 6 жыл бұрын
Prime.
@DF-tj5tw 6 жыл бұрын
im calling the police
@adls04 6 жыл бұрын
Shantanu Aryan lol i know what number ur talking about
@josgeerink9434 6 жыл бұрын
dvd encryption damon
@yafi2475 7 жыл бұрын
No one likes "Root 2"? Come on
@japascho 6 жыл бұрын
i like it :)
@kevsmith1980 6 жыл бұрын
My favourite, I learnt it from photography and the ratio between f.stops ;)
@agmt233 6 жыл бұрын
Especially not Pythagoras
@sienahurwitz9085 6 жыл бұрын
BOOM
@sirilandgren 6 жыл бұрын
I usually think of root 2 as my fave! Partly for historical reasons.
@00bean00 6 жыл бұрын
_21_ "It's really hard to explain why" AHAHAHA 5:01 Ah, the taxi cab number!
@jakob5063 6 жыл бұрын
144 because its a perfect square and a Fibonacci number
@dozenazer1811 5 жыл бұрын
12 and 144 are my favourites, I've finally found a guy with common favourite numbers.
@gabor6259 4 жыл бұрын
144 is 12 squared and the 12th number of the Fibonacci sequence.
@isaacthemathdog 4 жыл бұрын
Me too! It's a perfect square, also a perfect square backwards, the sum of its digits is also a perfect square, it is the sum of 4! and 5!, And this one i just learned, the sum of the first 144 digits of π is 666.
@hubb8049 4 жыл бұрын
@@isaacthemathdog Woah, you just went too far, buddy
@dishant8126 4 жыл бұрын
@@isaacthemathdog and the square root of 441(144 backwards) is 21 which is 12 backwards
@mrping2603 7 жыл бұрын
I think your angle for CGPgray is a bit off
@Vedvart1 7 жыл бұрын
Yeah, we can't see all of his leaves
@TebiByyte 10 жыл бұрын
My favorite number is x, because all the numbers are my favorite.
@servvo 3 жыл бұрын
I love how grant pans to a tree while he's filming cgp
@proxyprox 2 жыл бұрын
Grant?
@mega0unit 5 жыл бұрын
6 because it is the first perfect number and also is a colossally abundant
@Propper-sp6tm 7 жыл бұрын
42
@PAhmad99 6 жыл бұрын
unfortunately, people don't get it :'(
@josgeerink9434 6 жыл бұрын
+AlphaSquad the answer to
@sttlok 3 жыл бұрын
@@josgeerink9434 the Ultimate Question of Life, the Universe, and Everything
@saboo_tage 7 жыл бұрын
anything divided by zero
@koji2072 6 жыл бұрын
undefined isnt a number, its a state.
@DF-tj5tw 6 жыл бұрын
im calling the police
@blobstar123blob4 6 жыл бұрын
What? 0/0?
@FrostDirt 6 жыл бұрын
Blobstar123 Blob Imagine that you have no cookies and you want to share it with no friends. That would make no sense, you must be sad because you have no friends (Cookie Monster is also sad because there are no cookies).
@Frankie3sticks 6 жыл бұрын
Love it!
@digitalfootballer9032 5 жыл бұрын
19, because it was always the highest kit number on an 18 man football squad (the goalie got his number 1 goalie shirt, plus an outfield shirt as well)...and nobody ever wanted the high numbers. One year I was home sick when the team picked their shirts, and I ended up with 19. That year we won our division, so I felt it was lucky and from there on out I always wanted the number 19 shirt, and it was easy to get it because nobody else wanted it.
@NuncNuncNuncNunc 6 жыл бұрын
No love for phi in this bunch. My fave might vary, bu my least favorite number is NaN. Thanks, IEEE.
@elnico5623 3 жыл бұрын
Null (nil for the friends)
@archierm 6 жыл бұрын
"8" Coz symmetry
@Ma-pz2fy 6 жыл бұрын
But 0 is symmetric and more interesting (I find)
@audiblemagician6751 7 жыл бұрын
1*1=1 1÷1=1 1!=1 Root 1=1 Abs 1= 1 XD 1/1=1 So in conclusion my fav number is 690
@mk_rexx 6 жыл бұрын
*claps
@thegabrielchannel818 4 жыл бұрын
8 In minesweeper, you would have to be extremely lucky for the number “8” to show up. It is also a nice, whole, even round number and is part of the 2^n sequence.
@kuru9157 4 жыл бұрын
I like 64. When we were young, we were taught that every number had a pair, that when added together would equal 10 (kymppiparit in finnish). I really liked 64, more than i liked 91, 82, 73, 55, 46, 37, 28 and nineteen, not sure why, it just felt more.... stable. When i read more into it, i realize that it also had some amount of "prestige" - if you could call it that- to it. I never was one to memorize stuff so well, that it became instinctive. Thus learning 8 * 8 = 64, was a big achievent for me (i was like 8 or something mind you). Like it works in a nice way, 8^2 = 64, it has an whole number even square root. It just stuck with me i guess P.s minecraft's stack system had a non-zero amount of influence over the engraining of that number in my mind, but it was my favorite number before i played minecraft.
@elnico5623 3 жыл бұрын
Really any power of two is amazing
@omjoglekar3677 3 жыл бұрын
@@elnico5623 well 64 is a power of 2 and guess what ? even 3 !!
@RubyPiec 2 жыл бұрын
@@elnico5623 I don't like even numbers, let alone double-even numbers
@matthewbertrand4139 7 жыл бұрын
6.0221 x 10^23. I'm a chemistry major, so I'm obligated to give a chemistry-related answer.
@simassvabas4129 7 жыл бұрын
let me guess your favorite atom is carbon 12?
@matthewbertrand4139 7 жыл бұрын
Simonas Svabas Yes it is! Who would I be if I didn't love the atom which set the standard for this number?
@Gakulon 7 жыл бұрын
Matthew Bertrand I prefer Carbon-14, which is used for carbon dating.
@Wackydude27 7 жыл бұрын
Ah of course! Avocado's number!
@matthewbertrand4139 7 жыл бұрын
Jacob I'm not sure if your phone auto-corrected you or what, but the term you're looking for is Avogadro's Number.
@user-fq4jz6qm8i 10 жыл бұрын
55 1+2+3+4+5+6+7+8+9+10=55 It's a silly reason but I came up with it when I was 5 years old so I thought it was special then.
@carlkirkegaard2030 3 жыл бұрын
81 is my favorite number, when I became this age, I realized it is the only number where the sum of the digits is the square root of the number!
@CompactStar 2 жыл бұрын
As someone interested in number theory, it's 30. The reason is if we had a base-30 number system, it would be easy to work with halves, thirds, and fifths of things since 30 can be divided by all of them. For example, if there was 30 ounces in a pound, a half of a pound, a third of a pound, and a fifth of a pound would all be a whole number of ounces. That would be SO convenient!
@shamelessangus 7 жыл бұрын
27. It just feels like a strong number. 3 to the 3rd power.
@cartert2772 7 жыл бұрын
shamelessangus me too
@albertoxirzag990 7 жыл бұрын
Also if you add 2+3+4+5+6+7 you get 27
@david-melekh-ysroel 24 күн бұрын
Omega(3)
@Wingo206 7 жыл бұрын
My favorite number is 0.000044 because it is the value of a Vietnamese dong today in USD
@katakana1 6 жыл бұрын
_Your favorite number is always changing..._
@sheemas1815 4 жыл бұрын
My favorite number is definitely 4. I don't know why, I just like it.
@PlatonicPluto 2 жыл бұрын
250, simple, it was a very special and meaningful step in how far I've come as a youtuber when I reached 250 subscribers.
@GothicKin 8 жыл бұрын
I like 1,000,000 because it's the biggest number ever.
@ethanmemelord2727 8 жыл бұрын
Graham's number, a trillion a quadrillion etc
@GothicKin 8 жыл бұрын
So you're trying to tell me that there is a bigger number than 1,000,000? Let's go over that one more time. Two adults ( I hope ) both interested in numbers and mathematics ( due to the channel and the video we are a watching ) are discussing whether 1,000,000 is or isn't the biggest number ever. Did I get that right?
@dot818 8 жыл бұрын
+Jacopo Barberis Are you sure that this is a discussion? For a discussion there need to be arguments, not just statements. One Argument for the "1000000 is not the biggest number" can be made if you think about adding 1 to your biggest number.
@NetAndyCz 8 жыл бұрын
+Jacopo Barberis Googolplex:p
@GothicKin 8 жыл бұрын
Do I need to link you all the definition of "irony" maybe you're just all tired but my comment was just ironic.
@strengthman600 8 жыл бұрын
I'm disappointed that vi didn't do 1, considering she had already made her video on wau
@cameodamaneo 8 жыл бұрын
That video was pretty wau.
@DZHOY 7 жыл бұрын
Sammy or even tau. that surprised me
@elliesmile8939 7 жыл бұрын
Sammy the reason my favourite number is 1 is largely because of that video
@Maxime_K-G 3 жыл бұрын
26, I started randomly using it in a bunch of things and thought it had a nice quality to it. I don't have synesthesia in the way people usually describe it but I do think specific colours work best with certain numbers. For me, 2 is yellow and 6 is red. 6 is coincidentally my favourite digit, I think that is related to the fact it is red in my head. In my language, we use the word "digit" a lot more than in English so that's why I have a favourite digit in the first place.
@Antellars 2 жыл бұрын
I have synesthesia and 26 is kind of nice to me because both 2 and 6 are green to me.
@CTPlayZ1026 Жыл бұрын
26 is also my favorite number because of my birthday. But if I could pick a number through 1-10 I would probably choose either 2 or 6.
@DorkOrc 3 жыл бұрын
I love that ViHart's section is an acid trip 😂
@QuantumBraced 9 жыл бұрын
How can something squared equaling one, not be one?
@ARP2wefightforyou 9 жыл бұрын
QuantumBraced -1^2=+1 But, -1=/j
@QuantumBraced 9 жыл бұрын
Guys, I got it, there's obviously -1. I'm an idiot. I meant other + / - 1. I get complex numbers can do that, but they don't exist, so... Although what the heck does that even mean, they don't exist... Math is supposed to be a hard science and yet semantics seem to matter a lot :D
@lppunto 10 жыл бұрын
Tau. Easy. It's like Henry said: the underdog is the best. Add to that the incredible significance of tau generally found in more popular numbers, and you've got something truly incredible. From the more intuitive notion of tau than its ubiquitous cousin pi, to the astounding improvement of Euler's formula when using tau instead of pi, tau is an absolutely wonderful number that doesn't get enough attention.
@IvanSRG. 2 жыл бұрын
169: 169 = 13² = (14 - 1)². 14² = 196, and, changing the position of the last 2 digits it's 169. 169 upside down is 961. √961 = 31, which is 13 upside down. It's the 35 lucky number. It's the first composite number that can be written as the difference of 2 cubes of consecutive numbers: 169 = 8³ - 7³. Alt + 169 = ®. 10609 = 103².
@IvanSRG. 2 жыл бұрын
Another is 370 = 3³ + 7³ + 0³. Also 5050 and 5040.
@theanglophilegamer5002 4 жыл бұрын
I love 11 because of all the multiplication tricks around it. And, the powers of 11 also make up Pascal's Triangle visually. Oh, and of course; 11 is prime! ;)
@tygret 10 жыл бұрын
Never in all my life have I heard of ViHart's *... And nowhere can I find anything about it
@UnderscoreZeroLP 10 жыл бұрын
42. It is the answer of the universe.
@noeyesprotagonist8987 2 жыл бұрын
my fav numbers are 3,7,12 for a lot of intresting stuff are related to them for me. Like there are generally 3 major gods in various mythology, 3 sides, vertices, etc. of triangle, to start something you count down to 3, traingle is least sided polygon. In general whenever someone gives choices it is out of 3.
@jessicarobinson4260 3 жыл бұрын
I really like 12, it's a pretty small number with quite a few factors so it's just very convenient to be honest.
@samhart6610 9 жыл бұрын
73! LOTS of reasons... 7 + 3 = 10 73 is the 21st prime number (remember 21!) if you switch the digits, 37 and this is the 12th prime. if you switch the digits of 12 you get 21! (because 73 is the 21st prime) Plus, 21's factors are 7 and 3! Also 73 in binary is 1001001 which is a palindrome. :)
@leppeppel 9 жыл бұрын
Sam Hart You'd be surprised how many more awesome properties 73 has. I'll be posting a video on my channel soon all about the number 73.
@leppeppel 9 жыл бұрын
***** I don't know if you saw the numberphile Chinese lucky numbers video but in Chinese numerology(?) four is the number of death. It may also be a case of observational bias thought. You just didn't mentally bookmark looking at the clock at 5:17 pm or taking a number 7 bus. I did the same thing with the number 117 shortly after ununseptium (element 117) was discovered/synthed-in-lab.
@leppeppel 9 жыл бұрын
Cooper Gates I had the same thought. (It's 4.47011546 x10^105, btw.)
@coopergates9680 9 жыл бұрын
Russ Epp-Leppel Do some of those properties of 73 vanish when it's not written in decimal? 73 is 61 in dozenal, and I can't call that "sixty-one" because it's one more than six dozens.
@grandolddrummer 9 жыл бұрын
Sam Hart I read that as 73 factorial. Now THAT'S a number!
@gorila987k 8 жыл бұрын
my birth date 13.2.1987 , all primes x)
@juanpedro19840914 8 жыл бұрын
+gorila987 Happy late birthday!
@morsus.serpentis 8 жыл бұрын
+gorila987 not really...
@gorila987k 8 жыл бұрын
Juan Pedro Romero thanks bro x)
@sachagoldman8311 8 жыл бұрын
1 isn't prime
@camilincamilero 8 жыл бұрын
+Sacha Goldman 13 is
@EGMusic12 4 жыл бұрын
12 because it's a very small highly composite number and we should switch to base 12!
@artstsym 6 жыл бұрын
Having just started to use e constructively, I'm really enjoying it.
@sweetdaydreams4249 7 жыл бұрын
Mine is 96. I liked the rotational symmetry, and when I was learning times tables, I imagined it being a "flowing" number.
@IllIlIllIlIllIlIllIl 10 жыл бұрын
I like 91 because - It's 7 times 13 (two interesting numbers; 7 is often considered "lucky" and 13 is considered "unlucky" - I was born in 1991 - ...I don't remember what else. I think it looks cool
@mauriciomon600 5 жыл бұрын
8, ever since I was a child I already admired it was divisible by 2 'lots' of times and it was a one-digit number, so it would appear often
@starlight78910 6 жыл бұрын
12 It's such a nice even number that's divisible by lots of other numbers and is a factor in a lot of other numbers
@pitreason 8 жыл бұрын
Tree's favourite number is 0. Cool)
@bendover8738 8 жыл бұрын
My favorite number is 69, for no particular reason.
@42scientist 8 жыл бұрын
No particular reason ?
@sanaalimam3319 8 жыл бұрын
That doesn't seem exactly innocent to me :D
@nekoblitz 7 жыл бұрын
I can approve that too. Just out of plain being bored. Also the largest number you can factorialize 3 times is 2, as you can factorialize is infinite times. The maximum for X!! = 4.
@noredine 7 жыл бұрын
it's cuz it represents equality ;)
@FizzyToni 7 жыл бұрын
john j, I was thinking the same
@grapesw8 6 жыл бұрын
commenting on a video from 2012. My favorite is 5252. As a child this was a number I would say all the time, and it just has a really nice look about it.
@soyitiel 6 жыл бұрын
7:11 duuude
@XtremeQuantumSrength405 6 жыл бұрын
Itiel López.
@cheesecakelasagna 6 жыл бұрын
*hits blunt*
@elnico5623 3 жыл бұрын
@@cheesecakelasagna hits blunt.... do numbers exist?
@potatogames42 10 жыл бұрын
101010... It's 42 in binary... can't get better than that...
@AnthonyCastrati 10 жыл бұрын
I like 8 because it packs a punch. A 2x4 is a great instrument to hit with.
@kushagra64 3 жыл бұрын
golden ratio φ as it equal to the ratio of a side and a diagonal of a regular pentagon and pentagon my favorite polygon as you cant tile a plane with pentagon without using other polygon which made the plane look way cool and complex.
@hashslingingslasher748 Ай бұрын
3 is my favorite number. A lot of video games I like have 3 in them and I was born in 2003. I love the way it looks
@rkrokberg 8 жыл бұрын
My favorite number is π because I like eating pies, and pies are round.
@rosiesthoughts 8 жыл бұрын
+rkrokberg 10/10
@josephkeeley4898 8 жыл бұрын
+Melrose Kristyn 3.14/3.14
@corythecreeperplaysmc8464 8 жыл бұрын
+rkrokberg mine is 7 because it's the number of colors on a rainbow(actually there is only 6 but Newton had the rights).
@funkytom7709 8 жыл бұрын
+rkrokberg the cake is a lie ^^
@coylittlefish 6 жыл бұрын
Someone else sees numbers sharpness 😀
@katakana1 6 жыл бұрын
I know what you mean, something with factors and primes...
@ZomB1986 6 жыл бұрын
I see number-form synesthesia, specifically for age, dates and years, not so much for number lines.
@michaelg5932 5 жыл бұрын
Kinda
@MrTLSfan 5 жыл бұрын
that made me realize that i too do see certain "sharpness" or maybe "clearness" in some numbers 21 is a very clear number in that sense
@mhelvens 5 жыл бұрын
Is this actually a thing? Like, will multiple people agree on the sharpness of numbers in a blind test?
@nekezajebancije 6 жыл бұрын
Mine is 42, for obvious reasons... ... But the number started "following" me synchronistically a few years ago and has been there for me in special moments in really weird ways. :) It also has this really nice quality about it. Its half is 21, a really nice number in its own right, and is 7x6, which is also really kinda nice... Ah well, it's a subjective thing! I just really like it. :)
@mambodog5322 4 жыл бұрын
4, it's 2+2, it's 2x2, it's 2^2, and if you use up-arrow notation, it's also 2^^2, 2^^^2, etc etc etc.
@pjrt_tv 8 жыл бұрын
Why is CGPGrey always hiding?
@ampz1466 8 жыл бұрын
+Pedro Rodriguez Maybe he's a teacher in his life, so it's easier for him to teach without his students knowing he's on KZfaq?
@pokestep 8 жыл бұрын
+Ampz14 Not sure if anyone told you, I'm not sure if it's the reason, but yes he should be a teacher.
@goonerbeagunner4life 8 жыл бұрын
+Ampz14 He hasn't been a teacher for a few years now.
@DrSpoon99 8 жыл бұрын
+Ampz14 He's said that he has had students in the past who knew who made videos, but not many cared.
@TheTexas1994 7 жыл бұрын
69 because I'm immature
@matej9834 7 жыл бұрын
Nicolas Gleason-Boure 247 because i blaze it
@user-oc3sl4to9m 4 жыл бұрын
6 because it was Bobby Moore’s shirt number(he was a footballer)
@vinijoncrafts2882 2 жыл бұрын
5, because musically a quintuplet and a quintuplet swing sounds really cool. Also I play a game called adofai and quintuplets normally look like pentagons or decagons and I find them pretty so yeah lol
@joshuahadams 8 жыл бұрын
4507 is my favourite because it can be read as "josh" on an upside-down calculator.
@theleftuprightatsoldierfield 7 жыл бұрын
Josh Adams it would say LOSh not Josh
@TheX329 10 жыл бұрын
Vi Hart is ridiculously clever
@saleplains 10 жыл бұрын
i think she was on acid also i love her
@eth3792 Жыл бұрын
Mine is 1001. Besides being just one more than 1000 and palindromic/mirrorable, it just so happens to be the product of three consecutive primes in 7×11×13, which I've always thought was fascinating!
@jonathanlaughter3830 5 жыл бұрын
I’ve always loved the number 3, I break everything into 3’s
@barnyardhouse 8 жыл бұрын
My favorite number is 89. While I was part of a writing team for an indie game, a writer off the cuff had a batty character say "...and you know what 87 divided by- YOU CAN'T DO IT! IT'S PRIME!" We were like, that's not prime, so we changed it to 89. We ended up throwing the number in the game all over, and the game is very special to me so I love the number. And recently I found out that not only is 89 a prime, but it's a Fibonacci prime! Extra cool!
@spencerhansen2927 8 жыл бұрын
73 is mine because it is the 21st prime, backwards 37 which is the 12th prime, 7x3 is 21, and in binary 73 is a palindrome
@Cloiss_ 8 жыл бұрын
+Spencer Hansen Seems to be a popular result :)
@steckner 8 жыл бұрын
+Spencer Hansen You may find it interesting that a prime number that, when reversed, is still prime (such as 37 and 73) is called an "emirp" ("prime" backwards). Ooh, and also, "37" is the atomic number of Rubidium, which is a splendid element.
@Cloiss_ 8 жыл бұрын
Also, 12 backwards is 21, making it a special emirp (probably) not found in any other pair of numbers.
@steckner 8 жыл бұрын
Neither 12 nor 21 are prime in base 10 though, I'm not sure what you mean.
@Cloiss_ 8 жыл бұрын
37 = 12th prime, 73 = 21st prime!
@Clemens214 6 жыл бұрын
My Favorite Number is 8 specifically written as 2^3. Probably because of that since I also like e.g. 27 and 64.
@user-vi5vn1gm6p Жыл бұрын
Everyone: *gives some short explanation on why they chose the number * Michael: **goes full “Vsauce video” mode and jumps between various topics slightly related to 17** But how much does 17 weigh ?
@KaliTakumi 7 жыл бұрын
My favourite number is 7 because I feel like it's the most unusual. Not much is accredited to 7 compared to the other digits. 1 is vital, 2 is the basis for even integers, 3 is commonly used in counting, trios, trophies, 4 is made by 2+2 and 2×2, 5 is half of the digits in base 10 and the number of fingers on one hand, 6 is a product of two common numbers, 8 has 2 as a cube root, and nine has 3 as a square root. While 7 is a prime that is rarely used, and is the only number between 1-10 with two syllables. On top of that, it produces what is arguably the most unusual square number under 100: 49. And when you write 10 in the lucky number base 7, it comes out as the very unlucky 13.
@cumcad 7 жыл бұрын
I heard that 7 is the "loneliest number" between 1-10 for two reasons: You can have these product-relative pairs 1-2, 2-4, 3-6, 4-8, 5-10, 3-9, leaving 7 the odd man out. And then 1x2x3x4x5x6 = 8x9x10, again leaving 7 the lone wolf.
@Obviary 2 жыл бұрын
7 is the amount of days in a week
@MrRTrix 7 жыл бұрын
My favourite number is a googolplex. It's one of the largest named finite numbers and although it doesn't have any special properties or is even as large as Graham's number, it's still an interesting number
@probablyabsent326 6 жыл бұрын
Though I can never really use this when someone asks my favorite number, since it happens to be 100 digits long and I cant be bothered to memorize that, 3,139,971,973,786,634,711,391,448,651,577,269,485,891,759,419,122,938,744,591,877,656,925,789,747,974,914,319,422,889,611,373,939,731 Has some really neat properties. It is prime if read forwards or backwards, and if you split it up into 10, 10 digit numbers, each one of those will be prime, and, if you add the ten digits in each of those numbers, you get 56 for every one of them.
@crazilycrazy29 Жыл бұрын
Mine is 25 because it's 5 squared... that's the only reason. Something about the square containing the root just feels satisfying (and yes I like 36 too).
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