7777

This number is a composite.

Single Curio View:   (Seek other curios for this number)
7777 = 6^5 + 1 is probably the only repdigit number of the form (p+1)^p+1 where p is prime. Also, it is probably the only multidigit repdigit number of the form (n+1)^n+1. [Firoozbakht]

Submitted: 2009-06-06 09:59:47;   Last Modified: 2009-06-06 13:32:01.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell