228251
This number is a prime.
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228251, 228311, and 228341 are the first three consecutive Sophie Germain primes that are all Honaker primes. [Gaydos]
Submitted: 2018-04-14 14:15:47; Last Modified: 2018-04-14 17:28:55.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell