# 7817

This number is a prime.

The smallest emirp formed by concatenating P, S, n, where P and S are the product and the sum of the digits of a zeroless multidigit emirp, (case n=17). [Loungrides]

(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