345676543
This number is a prime.
Former editor Léo Sauvé once pointed out the particularly attractive nine-digit palindromic prime 345676543 in an issue of the problem solving journal Crux Mathematicorum.
(There is one curio for this number that has not yet been approved by an editor.)
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell