113227
This number is a prime.
The first emirp, that is a concatenation of a Sophie Germain emirp p, (case p=113), and the corresponding safe prime 2p+1. [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
The first emirp, that is a concatenation of a Sophie Germain emirp p, (case p=113), and the corresponding safe prime 2p+1. [Loungrides]