Abstract: It is conjectured that Lagrange's theorem on four squares is true for prime variables, that is, every large integer n with n ≡ 4 (mod 24) is the sum of four squares of primes. In this paper, ...

Do you think there’s a triangle whose angles measure 41, 76 and 63 degrees? At first, answering this may seem easy. From geometry class we know that the sum of the measures of the interior angles of a ...