11111...11111 (1031-digits)
This number is a prime.
Single Curio View: (Seek other curios for this number)
R1031 or (10^1031-1)/9 is the fifth known repunit prime. [Dobb]
Submitted: 2002-04-10 06:50:27; Last Modified: 2008-01-30 17:28:00.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell