# 1918

This number is a composite.

1918 is the only known number m such that both 111^111 - m and 111^111 + m are primes. [Firoozbakht]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell

This number is a composite.

1918 is the only known number m such that both 111^111 - m and 111^111 + m are primes. [Firoozbakht]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell