23

This number is a prime.

Single Curio View:   (Seek other curios for this number)
(23, 29) is the only pair of consecutive double-digit primes p, q, such that the sum of digits of p^5 is equal to q and the sum of digits of q^5 is equal to p, (23^5=6436343 (whose sum of digits is 29) and 29^5=20511149 (whose sum of digits is 23). [Loungrides]

Submitted: 2013-12-20 07:00:54;   Last Modified: 2019-03-22 09:00:00.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell