How many digits do you know pi up to?

[DM was on fire!]

Pi is usually used in math equations, such as finding the circumference of a circle.

http://mathforum.org/dr.math/faq/faq.pi.html

[Twinkle]

Either 3.14 or 22/7.

[shapu]

I know it as 3.14159. I'm sure there's a goofy reason why, but I don't remember it.

[Harmonize]

3.14. I never really learnt the rest cause I always use the Pi button on my calculator

[Wind]

3.141... though I have little use for that third decimal.

[stinkyllama]

3.14. I never really learnt the rest cause I always use the Pi button on my calculator

Ditto. 3.14 for me but when using a calculator, I always use the Pi button I'm sure I had to know more for some hardcore science courses but I blocked most of that nightmare from my memory.

[Christopher]

I know it as 3.14159. I'm sure there's a goofy reason why, but I don't remember it.

The last three digits are diagonal on a remote?

[Skynetmain]

3.1459 is all we really need in my physics class. We're only of on the circumference of the universe by a proton or two

[ryan.riverside]

I know a few hundred. I haven't spent much time on it, either... I just got bored after 250.

[Pixa]

I know the first 8, 3.14159265, somehow, though have never really made the effort to learn it. It's just in there.

[Twizzler0171]

3.14159! For a very silly reason. But I won't bother explaining. I'll give the basics of it, though.

March 14th at 1:59 minutes, haha.

[Bangel]

3.14159... I don't have much use for anything else.

[Tymaporer]

In eighth grade, if you memorized 100 digits by March 14, they gave you a pie. So I did. I only remember 63 though, and a few at the end (of the 100).

3.141592653589793238462643383279502884197169399375105820974944592 skip a few 421170679

[shapu]

I know it as 3.14159. I'm sure there's a goofy reason why, but I don't remember it.

The last three digits are diagonal on a remote?

They're diagonal the other way on a number pad.

[.:Requiem:.]

3.14159265358979323846264338327950288419
7169399375105820974944592307816406286208
9986280348253421170679821480865132823066
4709384460955058223172535940812848111745
0284102701938521105559644622948954930381
9644288109756659334461284756482337867831
6527120190914564856692346034861045432664
8213393607260249141273724587006606315588
1748815209209628292540917153643678925903
6001133053054882046652138414695194151160
9433057270365759591953092186117381932611
7931051185480744623799627496735188575272
4891227938183011949129833673362440656643
0860213949463952247371907021798609437027
7053921717629317675238467481846766940513
2000568127145263560827785771342757789609
1736371787214684409012249534301465495853
7105079227968925892354201995611212902196
0864034418159813629774771309960518707211
3499999983729780499510597317328160963185
9502445945534690830264252230825334468503
5261931188171010003137838752886587533208
3814206171776691473035982534904287554687
3115956286388235378759375195778185778053
2171226806613001927876611195909216420198

That's 1000 digits, assuming I didn't forget any. (I don't think I did, I have a really good memory....obviously)

I won a school contest on Pi Day last year

*edited so not to stretch the pages