77777...77777 (79-digits)
This number is a prime.
777777777
7777777777 7777777777 7777777777 8777777777 7777777777 7777777777 7777777777
The largest near-repdigit palindromic wing prime, less than a googol, containing 7's. [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell