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Let n = pq, where p and q are distinct primes such that p ≡ q ≡ 3 (mod 4). Suppose a ∈ Z+ with a < n. Prove that if the

Posted: Fri Jun 10, 2022 11:57 am
by correctanswer
Let n = pq, where p and q are distinct primes such that p ≡ q ≡
3 (mod 4). Suppose a ∈ Z+ with a < n. Prove that if the Jacobi
symbol (a/n) = 1, then a ^[φ(n)/4] ≡ ±1 (mod n).