7
This number is a prime.
Just showing those entries submitted by 'Guy': (Click here to show all)
7! - 6! + 5! - 4! + 3! - 2! + 1! is prime. [Guy]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
Just showing those entries submitted by 'Guy': (Click here to show all)
7! - 6! + 5! - 4! + 3! - 2! + 1! is prime. [Guy]