11111...11111 (92-digits)

This number is a prime.

                                                    11 1119111111 1111111111
1111111111 1111111111 1111111111 1111111111 1111111111 1111111111 1111111111

+ The smallest near-repunit prime whose sum of digits is equal to a hundred. [Loungrides]

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