250431285

This number is a composite.

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

+ 250431285 * 23557 - 1 is both a titanic twin prime and a titanic Sophie Germain prime, since 250431285 * 23557 + 1 and 250431285 * 23558 - 1 are prime. [Broadhurst]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell