521
This number is a prime.
Single Curio View: (Seek other curios for this number)
M(521) can be written as 512*2512 - 1. Therefore, it is a Woodall prime as well as a Mersenne prime. [Dobb]
Submitted: 2002-04-20 06:56:01; Last Modified: 2009-01-23 01:57:24.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell