858
This number is a composite.
Single Curio View: (Seek other curios for this number)
Smallest palindromic prime p such that p-1, p+1, p-5, and p+5
are all primes. [Sariyar]
Submitted: 2018-12-09 16:50:09; Last Modified: 2018-12-09 17:49:53.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell