20311...00001 (26-digits)

This number is a prime.

                                                203119 9133368320 0000000001

+ The least odd prime of the form 1 + product(k^prime(k), k = 1 to n), where n = 6. [Merickel]

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