This number is a prime.

Single Curio View:   (Seek other curios for this number)
The first emirp, that is a concatenation of a Sophie Germain emirp p, (case p=113), and the corresponding safe prime 2p+1. [Loungrides]

Submitted: 2012-10-23 05:12:16;   Last Modified: 2019-02-08 12:45:41.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell