Mathematics

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earned this badge 21 times.
Obtaining irrational probabilities from fair coins?
Awarded May 13 at 7:56
How to perform a fair coin toss experiment over phone?
Awarded Apr 14, 2020 at 10:31
What's the closest approximation to $\pi$ using the digits $0-9$ only once?
Awarded Oct 7, 2018 at 16:15
For primes sufficiently large, must digit products be zero?
Awarded Dec 15, 2017 at 5:38
Decidability of the Riemann Hypothesis vs. the Goldbach Conjecture
Awarded Jun 1, 2017 at 18:16
What are some examples of a mathematical result being counterintuitive?
Awarded Dec 3, 2016 at 19:02
Prove that there exist a block of $2002$ consecutive natural numbers.
Awarded Feb 21, 2016 at 12:53
Can't find the flaw in the reasoning for this proof by induction?
Awarded Feb 19, 2016 at 7:05
Can every even integer be expressed as the difference of two primes?
Awarded Jan 31, 2016 at 6:16
How, if at all, does pure mathematics benefit from $2^{74207281}-1$ being prime?
Awarded Jan 22, 2016 at 0:02
Is $\sum_{n \ge 1}{\frac{p_n}{n!}}$ irrational?
Awarded Jan 10, 2016 at 6:16
Infinitely many $n$ such that $n^2+1$ is squarefree
Awarded Sep 26, 2015 at 19:15
Are Primes a Self-Fulfilling Prophecy?
Awarded Oct 18, 2013 at 16:31
Suppose $p$ is an odd prime. Show that $1^{p-1} +2^{p-1}+ \ldots +(p-1)^{p-1}\equiv -1\pmod p$
Awarded Aug 7, 2013 at 23:04
Which simple puzzles have fooled professional mathematicians?
Awarded Feb 21, 2013 at 19:52
Is a prime factor of a number always less than its square root?
Awarded Aug 31, 2012 at 15:21
Divisibility of large number
Awarded Jul 16, 2012 at 15:47
Are sines of primes dense in $[-1,1]?$
Awarded Feb 16, 2012 at 8:09
Arrangement of Numbers
Awarded Feb 12, 2012 at 9:45
Which one result in mathematics has surprised you the most?
Awarded Feb 14, 2011 at 7:29
Why can you turn clothing right-side-out?
Awarded Sep 1, 2010 at 6:08

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