Introduction: Binary Counting

Picture of Binary Counting

Count to over one thousand using nothing but your fingers.


The TARDIS (author)2016-05-11

132 is double middle fingers lol

bigpinecone (author)2006-12-27

my new favorite number is 4...

CrayfishYAY (author)bigpinecone2014-02-02


112251919112 (author)bigpinecone2007-12-11


i tought binary was like, 10010111010101101101101110100010100101010?

DarkOneSS (author)1122519191122008-01-15

it is. in this instance each finger represents a 1 when it is up and a 0 when it's down. so 0000000000 = 0, 0000000001 = 1, 0000000010 = 2, 0000000011 = 3 and 0000000100 = 4. Understand? So that would make your number 1,299,994,592,554.

112251919112 (author)DarkOneSS2008-02-11

yeh, I figuered that out at dinner

Iridium7 (author)2009-06-02

my favorite # is 132

CrayfishYAY (author)Iridium72014-02-02

If only there was a like button....

fwjs28 (author)2009-05-26

this one is easier to understand, but the others are more in depth....i prefer this...

Arbitror (author)2009-03-20

#4 LOL!

knoxarama (author)2008-10-25

how to count in binary

this is more detailed

Deering (author)2007-12-20

so let's say there are 6 fingers, would the sixth one be 32?it confuses me so much... From what i understand, to some people binary comes to people naturally while others have to learn it.That and a fun fact is that certain puzzles are based on binary,you have to fugure wich ones have to be on (1) and off (0) at the right time and after a while you notice a pattern...

knoxarama (author)Deering2008-10-25

yes, because the other five together are 31

octavian234 (author)Deering2008-07-16

yes. all you do is take the previous number and multiply it by 2. when you want to write letters you would write in bits or sections of eight

casey321b (author)2008-10-19

omg a cartoon flipped me off. you 4er!!! really that shouldn't be posted i think. there is no such thing as four anymore

uffabrew (author)2008-10-16

The poster/cartoon is nice but seriously flawed. Using all ten fingers and all ten toes would result in 1,048,575 possible combination. Assuming you started counting at zero. I don't know how the cartoonist missed the other 8000 combinations. iMaybe the small toes are worth a little less........1,040,575 is not 2 to the 20th power. 2 to the 20th is 1,048,576, ie One Megabyte. Good job "Spiff" you get the A for the day for pointing out the error!

icedog515 (author)2008-02-15


copycat-42 (author)2007-11-23

frederick pohl wrote an essay about this. "how to count on your fingers" it was at the end of the his short-story collection "digits and dastards".

jerielng (author)2007-02-23

Look ma, 4!

zachninme (author)2006-11-14

Base 3 should be possible, Up = 2, bent =1, and down=0...

kennytatheguy (author)2006-10-28

number... four.... LOL.. well, anyway, thats great, i never knew binary and it always confused me.

Crash2108 (author)2006-09-11

Just don't tell your 4 year old how to tell his age on his fingers.

mewantbigboom (author)2006-08-11

is it appropiate counting to 4 like this?

savagenarce (author)2006-06-16

Maybe I'm missing something, or maybe I'm just becoming a grouchy old fart, but it seems I can count as high as I want without using my fingers, toes, or any other appendages. 1-2-3-4...a billion and one, a billion and two...

ICeSpliCe (author)2006-05-03

I used to do this when I was a wee child. One of my friends fathers taught us when were around 5 years old. I still use it when I need to add large numbers up. Sometimes people look at you funny, but who cares! I love it. Very glad to see that its being passed on. :):):)

pelrun (author)2006-02-21

If someone is able to individually control their toes, wow! I can only manipulate the smaller toes on each foot as one unit.

That means four extra bits, and therefore a maximum count of 214 = 16383.

I've counted binary on my fingers for as long as I can remember. Zero to three are the critical maneuvers as your index finger and thumb perform the same motion continuously - the faster you can do that, the faster you can count. The other fingers aren't much of a challenge after that... although it helps immensely with the more difficult numbers if you use your thumb to hold the other downed fingers.

erikabuentello (author)2006-02-11

super cool. I really love this.

spinach_dip (author)2006-02-03


spiff (author)2006-02-03

The fingers and toes panel number should be 1,048,575 (which is 220 - 1). You accidentally turned the 8 into a zero.

courtarro (author)2006-02-03

That might be dangerous! Make sure your son doesn't go around showing everyone how he can count to 4! Or even worse, 132!

LordVorp (author)2005-11-06

This is amazing... I showed my 6-year old how to do it and he picked it up in just a day! With just a tiny bit of coaching, we've already introduced hexadecimal, and it seemed a natural, simple extension. THANK YOU!!!!

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