2 2 is not 4 July 8, 2019 16 32 64 128 2 plus 2 is not 4 2 2 4 not 5 Modular arithmetic when 2 2 is not always equal to 4 2 2 is not always 4 2 2 is not equal to 4 N 2 2 is not divisible by 4 2*2 is 4 2+2 4 4+4 i don't know 2+ 2 = 4