11111...11111 (81-digits)

This number is a prime.

1 1111111111
1111111111 1111111111 1111111116 1111111111 1111111111 1111111111 1111111111

Single Curio View: (Seek other curios for this number)

1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 6 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1

The smallest near-repdigit square-congruent prime of order 9. [Hartley]

Submitted: 2003-02-05 04:46:37; Last Modified: 2008-01-30 17:28:00.