21480
This number is a composite.
The prime number 21480!-1 was discovered by Davis and Kuosa with the PrimeForm project. It is a factorial minus one prime. [Dobb]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
The prime number 21480!-1 was discovered by Davis and Kuosa with the PrimeForm project. It is a factorial minus one prime. [Dobb]