157
This number is a prime.
Single Curio View: (Seek other curios for this number)
The smallest emirp whose binary representation
(100111012) also forms an emirp in base ten. [Beedassy]
Submitted: 2010-07-18 10:14:51; Last Modified: 2022-02-04 00:31:41.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell