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coffeemath

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 3 years, 5 months
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16 $3\times3$ matrix of distinct positive primes with determinant $0$ Feb 1 '18
12 Simple graph with 6 vertices and 11 edges Jan 12 '18
11 Catalan numbers and triangulations Jul 30 '18
11 can the product of four positive integers in A.P. be a square? Apr 22 '19
10 Are there incongruent pythagorean triangles with the same perimeter and same area? Apr 10 '19
9 For which $n$ does $\binom{2n}{n}$ divide $\binom{4n}{n}$? Sep 2 '19
9 About Group Homomorphisms Sep 12 '18
8 Since $\zeta(1) \neq 1$, does this mean that $\zeta$ is not multiplicative? Jan 8 '19
7 Find the remainder when $99!+99$ is divided by $100$ Feb 6 '19
7 What is the method to show exactly one positive root of a Cubic equation? Dec 10 '17
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