691
This number is a prime.
Just showing those entries submitted by 'Galliani': (Click here to show all)
691 = 6!-6#+1. [Galliani]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
Just showing those entries submitted by 'Galliani': (Click here to show all)
691 = 6!-6#+1. [Galliani]