51
This number is a composite.
Single Curio View: (Seek other curios for this number)
The only two-digit number n such that the sum of the n-th power of all two-digit primes is also prime. [Bopardikar]
Submitted: 2012-04-20 14:01:30; Last Modified: 2020-05-29 20:13:27.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell