Thread: Prove

If p is prime, prove that (a+b)^p is congruent to a^p + b^p (mod p)

Originally Posted by mandy123

If p is prime, prove that (a+b)^p is congruent to a^p + b^p (mod p)

If you expand (a+b)^p as a binomial the intermediatary terms for become that divides .