19784...23997 (25-digits)
This number is a prime.
19784 1965566031 3589123997
The largest of three non-titanic primes of form p^p+(p-1) for p a prime, (p=19). Note that it is a pandigital Cyclops prime. [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell