55555...55559 (32-digits)
This number is a prime.
55 5555555555 5555555555 5555555559
The largest prime less than a googol of form (5)w9, (case w=31). [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
55 5555555555 5555555555 5555555559
The largest prime less than a googol of form (5)w9, (case w=31). [Loungrides]