4421

This number is a prime.

Single Curio View: (Seek other curios for this number)

4421 = 1! - 2! + 3! - 4! + 5! - 6! + 7! is prime. [Poo Sung]

Submitted: 2002-02-16 02:04:48; Last Modified: 2008-01-30 17:28:00.

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell