181619
This number is a prime.
The smallest invertible prime that is the concatenation of two consecutive strobogrammatic primes: (181, 619). [Bajpai]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
The smallest invertible prime that is the concatenation of two consecutive strobogrammatic primes: (181, 619). [Bajpai]