131681894401
This number is a prime.
13 1681894401
Just showing those entries submitted by 'Dobb': (Click here to show all)
131681894401 = (9!)2 + 1 is prime. [Dobb]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
13 1681894401
Just showing those entries submitted by 'Dobb': (Click here to show all)
131681894401 = (9!)2 + 1 is prime. [Dobb]