2593697

This number is a prime.

+ The only cyclic permutation of the digits of the exponent of Mersenne prime M38, i.e., 2^6972593-1, that is also prime. [Harrison]

(There is one curio for this number that has not yet been approved by an editor.)

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