The book is now available! 28503...58273 (991-digits)
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ 7^1172 - 1172^11; a prime of form 7^n - n^11, similar to Pomerance's Convenience Store numbers (see entry for PC 1999). It was certified prime with Primo. Also, if we sum the factorials of the digits of 7^1172 - 1172^11 we get 38125657, a prime. [Earls]




Prime Curios! © 2000-2017 (all rights reserved)