Question:1. Prove that 21 divides 3n7 +
7n3 + 11n for all integers
n.
2. Prove...
Question
1. Prove that 21 divides 3n7 +
7n3 + 11n for all integers
n.
2. Prove...
1. Prove that 21 divides 3n7 +
7n3 + 11n for all integers
n.
2. Prove that n91 ≡ n7 (mod
91) for all integers n. Is n91 ≡
n (mod 91) for all integers n ?