Twin Primes

July 26, 2019

According to number theory:

m is the base of a twin-prime pair (m, m+2) if and only if 4((m−1)! + 1) == –m (mod m (m+2)).

Your task is to write a program that implements the criterion given above, then calculate the twin primes less than a thousand. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.


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