55061...62431 (45-digits)
This number is a prime.
55061 8520345910 8373745368 7190513918 5678862431
31^(31-1)+(31-1) is prime number. Can you find a larger prime of the form p^(p-1)+(p-1)? [Martin-Ruiz ,
Sebastian]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean