primes
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Examples forPrime Numbers

Prime Numbers

Determine whether a number is prime:

Specify a prime by its position in the sequence 2, 3, 5, ...:

Find the nearest prime to a given number:

Prime Factorization

Compute a prime factorization:

Classes of Primes

Find a twin prime pair:

Find a Mersenne prime:

Find one of the few known Fermat primes: