This number is a prime.

Single Curio View:   (Seek other curios for this number)
The smallest Cyclops strobogrammatic prime formed by inserting a zero between an emirp and its invertible prime. Note that (199, 661) is the 2nd pair of 3-digit prime rotative twins. [Loungrides]

Submitted: 2016-11-12 19:12:15;   Last Modified: 2019-01-04 18:35:46.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell