This number is a composite.
(27331 - 1)/458072843161 is prime. This number has 2196 decimal digits and set a new record in 1997 for general purpose primality proving. It required 1 month of CPU on an Alpha 400 MHz. [Mayer and Morain]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell