2551
This number is a prime.
Just showing those entries submitted by 'Russo': (Click here to show all)
The smallest prime p such that p2 + p + 4 is a palindrome. [Russo]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
Just showing those entries submitted by 'Russo': (Click here to show all)
The smallest prime p such that p2 + p + 4 is a palindrome. [Russo]