315
This number is a composite.
3^315 + 2 is a 151-digit prime. Note that 151 is a palindromic prime. [Gallardo]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a composite.
3^315 + 2 is a 151-digit prime. Note that 151 is a palindromic prime. [Gallardo]