79
This number is a prime.
Single Curio View: (Seek other curios for this number)
Subtract 79 from 7!+9! and you will have another emirp. [Silva]
Submitted: 2009-11-22 02:08:26; Last Modified: 2009-11-23 04:59:09.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell