1728971
This number is a prime.
The only emirp formed by inserting the square of a
double-digit prime p between p and its reversal R(p), (case
p=17). [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
The only emirp formed by inserting the square of a
double-digit prime p between p and its reversal R(p), (case
p=17). [Loungrides]