This proof is giving me some trouble:
If p and p are distinct primes, prove that p^(q-1) + q^(p-1) is congruent to 1 modulo pq.
Any help is appreciated, thank you.
Hello,
Follow everything here : http://www.mathhelpforum.com/math-he...-1-mod-ab.html
(note that phi(p)=p-1 if p is prime)