196169
This number is a prime.
The concatenation in descending order of two consecutive double-digit squares, i.e., 14^2, 13^2, is an emirp. [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
The concatenation in descending order of two consecutive double-digit squares, i.e., 14^2, 13^2, is an emirp. [Loungrides]