33333...33333 (666-digits)
This number is a prime.
The smallest Near-Repdigit (other than Near-Repunit) Apocalypse prime. [Gupta]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean
This number is a prime.
The smallest Near-Repdigit (other than Near-Repunit) Apocalypse prime. [Gupta]