21480
This number is a composite.
Single Curio View: (Seek other curios for this number)
The prime number 21480!-1 was discovered by Davis and Kuosa with the PrimeForm project. It is a factorial minus one prime. [Dobb]
Submitted: 2002-04-15 20:59:08; Last Modified: 2008-01-30 17:28:00.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell