Mod x square 4 x 3 2 x 5 0 July 8, 2019 16 32 64 128 2x = 1 (mod s) 3x = 9 (mod 6) 4x = 1 (mod 7) sx = 9 (mod 11) 3x = 4(mod 5) 4 mod 5 = 4^2 mod 11
