# 106891601

This number is a prime.

The smallest Honaker emirp P containing all of the invertible digits {0, 1, 6, 8, 9}, that yields another Honaker emirp Q (109168901) when rotated by 180 degrees. Curiously, P and Q both are expressible as the sum of two squares. [Bajpai]

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