77777...77777 (49-digits)

This number is a prime.

777777773 3333773777 3773737377 3777377333 3377777777

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

      7 7 7 7 7 7 7
      7 3 3 3 3 3 7
      7 3 7 7 7 3 7
      7 3 7 3 7 3 7
      7 3 7 7 7 3 7
      7 3 3 3 3 3 7
      7 7 7 7 7 7 7

The only square-congruent prime of order 7 that contains two prime digits. [Hartley]

Submitted: 2003-02-08 03:30:41; Last Modified: 2008-01-30 17:28:00.