40898...00001 (867-digits)
This number is a prime.
The smallest prime number that can be written as 2a^2+1, or 3b^3+1 or 5c^5+1 or 7d^7+1. [Hartley]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
The smallest prime number that can be written as 2a^2+1, or 3b^3+1 or 5c^5+1 or 7d^7+1. [Hartley]