32462531054272512000001
This number is a prime.
324 6253105427 2512000001
The smallest prime number that can be written as 2a^2+1, or 3b^3+1 or 5c^5+1. [Hartley]
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell