76666...66667 (575-digits)
This number is a prime.
The largest non-titanic depression prime p of the form p = 7(6)n7. [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
The largest non-titanic depression prime p of the form p = 7(6)n7. [Loungrides]