This number is a prime.

+ The smallest 4-digit prime p such that p^3 ends with p. [Russo]

+ The smallest emirp p such that p^p ends in p and p is not congruent to 1 (mod 10). [Post]

(There is one curio for this number that has not yet been approved by an editor.)

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell