1999
This number is a prime.
Single Curio View: (Seek other curios for this number)
1999 = 211 - 72. Note that any positive integer n that obeys the relationship n11 - 7n is called a "convenience store number." [Pomerance]
Submitted: 1999-09-18 02:00:47; Last Modified: 2009-08-08 20:45:07.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell