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Top Questions
40
votes
Shortest terminating program whose output size exceeds Graham's number
code-golf
math
busy-beaver
asked Jun 22, 2012 at 2:37
codegolf.stackexchange.com
31
votes
What is the millionth decimal digit of the $ 10^{10^{10^{10}}} $-th prime?
elementary-number-theory
prime-numbers
discrete-mathematics
recreational-mathematics
asked Oct 28, 2011 at 14:38
math.stackexchange.com
29
votes
Lifetime of a Worm
code-golf
array-manipulation
function
asked Jan 19, 2014 at 18:11
codegolf.stackexchange.com
26
votes
Does iterating $n \to 2n+1$ always eventually produce a prime number?
number-theory
prime-numbers
asked Dec 25, 2011 at 20:50
math.stackexchange.com
26
votes
How many planar arrangements of $n$ circles?
combinatorics
combinatorial-geometry
asked May 31, 2015 at 21:11
math.stackexchange.com
26
votes
Make a Voronoi diagram (ASCII variant)
code-golf
ascii-art
asked Dec 26, 2013 at 0:59
codegolf.stackexchange.com
26
votes
Is string X a subsequence of string Y?
code-golf
string
decision-problem
asked Apr 15, 2012 at 21:15
codegolf.stackexchange.com
25
votes
Do runs of every length occur in this string?
sequences-and-series
asked Jul 24, 2014 at 14:10
math.stackexchange.com
25
votes
Always oddly-many ones in the binary expression for $10^{10^{n}}$?
elementary-number-theory
computer-science
discrete-mathematics
asked Oct 5, 2011 at 15:53
math.stackexchange.com
18
votes
What is this 877-year cycle in the orbits of Jupiter & Saturn, and this multimillion-year cycle in the lunar orbit?
orbit
the-moon
jupiter
saturn
asked Mar 30 at 2:05
astronomy.stackexchange.com
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Top Answers
33
In what sense does a number "exist" if it is proven to be uncomputable?
math.stackexchange.com
24
Is it possible to plot a graph of any shape?
math.stackexchange.com
19
Function which creates the sequence 1, 2, 3, 1, 2, 3, ...
math.stackexchange.com
17
Represent a Uniform[0,1] random variable as a sum of independent Bernoulli(1/2) random variables
math.stackexchange.com
16
Busy Brain Beaver
codegolf.stackexchange.com
15
Is there a number so large that we could never calculate it?
math.stackexchange.com
14
Always oddly-many ones in the binary expression for $10^{10^{n}}$?
math.stackexchange.com
13
What are the odds of beating this obscure solitaire game?
boardgames.stackexchange.com
13
What is the millionth decimal digit of the $ 10^{10^{10^{10}}} $-th prime?
math.stackexchange.com
12
Polarization: etymology question
math.stackexchange.com
12
Graham's number expressed using xkcd's "Knuth Paper-Stack Notation"
math.stackexchange.com
11
Shortest code to produce infinite output
codegolf.stackexchange.com
10
Obfuscated Hello World
codegolf.stackexchange.com
9
How to fit a Weibull distribution to input data containing zeroes?
stats.stackexchange.com
9
How to find a formula for a non-obvious sequence of numbers?
math.stackexchange.com
8
Largest Number Printable
codegolf.stackexchange.com
8
How large is TREE(3)?
mathoverflow.net
8
Surprising identities / equations
math.stackexchange.com
8
How long will this take to reach.. kimye?
math.stackexchange.com
8
What is the highest number that can be got from 4383 by moving exactly 2 matches?
math.stackexchange.com
7
Nonsense from combining two iffs ($\iff$)
math.stackexchange.com
7
Approximating the variance of the integral of a white noise Gaussian process
math.stackexchange.com
7
Sum of consecutive square roots inside a square root
math.stackexchange.com
6
Probability that quadratic is an ellipse
math.stackexchange.com
6
Expected value: Random sequence
math.stackexchange.com
6
Have we found a Turing Machine for which halting/non-halting is unprovable?
math.stackexchange.com
6
What is the "pseudobinary" number system really called?
math.stackexchange.com
6
Probability of rolling a 1 before you roll two 2's, three 3's, etc
math.stackexchange.com
6
Turning 500, 1100, 1800, 2600, 3500, etc into 1, 2, 3, 4, 5, etc
math.stackexchange.com
6
Moments of a random variable in terms of its cumulative distribution function
math.stackexchange.com
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