182027
This number is a prime.
The smallest emirp formed by concatenating in order three consecutive “triprimes”, i.e., 18, 20, 27. [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
The smallest emirp formed by concatenating in order three consecutive “triprimes”, i.e., 18, 20, 27. [Loungrides]