66666...66667 (665-digits)

This number is a prime.

Just showing those entries submitted by 'Honaker': (Click here to show all)

+ As of 1999, the largest known Baxter-Hickerson prime. Its cube lacks zeros. [Honaker]

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell