Prove that if is prime where and then and is prime How I can use the identity : = + …+ to solve this Q ??
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Originally Posted by flower3 Prove that if is prime where and then and is prime How I can use the identity : = + …+ to solve this Q ?? Well, if is not a prime then, as you wrote, you have + …+ , and this is a non-trivial factorization of UNLESS ... Tonio