Idea of proof, which is simple

来源: 于 2014-10-20 13:38:45 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

Assume p, q>4.

q^3+1 = (q+1)(q^2-q+1), and gcd(q+1, q^2-q+1)
We get q