25717

This number is a prime.

Single Curio View:   (Seek other curios for this number)
The larger of two primes that can be represented as the reverse concatenation of two consecutive Fermat primes, (257, 17). The other is 53 that is the reverse concatenation of first two Fermat primes. [Loungrides]

Submitted: 2015-02-12 12:31:21;   Last Modified: 2019-08-17 14:09:05.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell