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 <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell