271489
This number is a prime.
The only prime of form n^3-[R(n)]^2, where n is a double-digit composite number and R(n) its reversal, (n=65). [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
The only prime of form n^3-[R(n)]^2, where n is a double-digit composite number and R(n) its reversal, (n=65). [Loungrides]