NODE d04e0d7ePrime number tests
Well, there is one prime number test which NEVER fails, and that is that (n-1)!+1 mod n is zero for all primes, and non-zero for all non-primes. ;-)
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Well, there is one prime number test which NEVER fails, and that is that (n-1)!+1 mod n is zero for all primes, and non-zero for all non-primes. ;-)