Prime Curios!: 1111111111111111111

1111111111111111111
(another Prime Pages' Curiosity)

Curios:

Index
Keywords
Home
Random
Glossary
Previous
Next
Random

Curios Search: Participate:

Mail Editor
Submit Curio
Prime Puzzio
Test Number

We will be upgrading the server this Monday and Tuesday (May 12-13) and this site
will be down at times on those day (and possibly the next). (caldwell@utm.edu)

111111111 1111111111

1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

A repunit hex-congruent prime in bases 11 and 12. [Dobb]

The second repunit prime. [Gronos]

1111111111111111111^2 = 1111111111111111111 (mod 11111111111111111111111111111111111111). [Luhn]