459

This number is a composite.

Single Curio View:   (Seek other curios for this number)
As of 2009, the largest known natural number n such that (1!+2!+3!+4!+ ... +n!) - 2 is prime. [Capelle]

Submitted: 2009-10-04 03:23:43;   Last Modified: 2013-07-11 20:58:14.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell