61

This number is a prime.

Single Curio View:   (Seek other curios for this number)
61 and its prime index (18) are both reverse fourth powers. There are no more examples of this property in the first billion primes. Are there any more at all? [Gaydos]

Submitted: 2020-01-17 05:47:13;   Last Modified: 2020-01-17 06:37:03.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell