8923

This number is a prime.

Just showing those entries submitted by 'Wesolowski': (Click here to show all)

+ The least prime p such that for all 2^k < p the numbers p + 2^k, p - 2^k, p*2^k + 1, and p*2^k - 1 are composite. [Wesolowski]

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell