521

This number is a prime.

Single Curio View:   (Seek other curios for this number)
The smallest prime p of the form p=2^n+n for n a composite integer (n=9). [Loungrides]

Submitted: 2009-04-24 13:43:25;   Last Modified: 2009-04-24 19:42:15.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell