GarouDan
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 Mar18 awarded Favorite Question Mar10 comment Is the number $-1$ prime? Just 4 divisors on integers. This is prime. -1, -3, 1, 3 for 3, for example. Sep24 awarded Autobiographer Aug28 awarded Self-Learner Jul8 awarded Nice Question Jul2 awarded Curious Jun3 revised Trying to solve this simple algebra problems: $\frac{5 + 8x}{3 + 2x} = \frac{45 - 8x}{13 - 2x}$ edited body May29 awarded Popular Question May27 comment Statements with rare counter-examples The best example that I know is the Gauss conjecture about two curves, that Liouville proved he was wrong. The number that proves Gauss was wrong is estimated to be ridiculously long. Some day I wrote an answer =) Apr27 awarded Yearling Apr24 awarded Popular Question Apr8 comment Visually deceptive “proofs” which are mathematically wrong This is about Srinavasa Ramanujan, no? Mar8 awarded Popular Question Feb24 awarded Nice Question Jan28 comment Can the golden ratio accurately be expressed in terms of e and $\pi$ Incridible. So fun, but so real. Huhu. Anyway, was a intersting question. Jan21 comment Results in graph theory proved using other areas of math, and vice versa Looks like if you prove that a graph is hamiltonian in a polynomial time you can prove P=NP (a million dollar problem of clay institute). Jan8 awarded Notable Question Sep17 comment This is stupid but I have a bad cold with cough Looks like a kind of last fermat jagy theorem showing up^^ Sep3 comment What was the first bit of mathematics that made you realize that math is beautiful? (For children's book) BeautifulHandsome^^ Jun5 comment Real world applications of prime numbers? Interesting, lol, maybe I will do something like this some day.