The book is now available! 43
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

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


43^43 + 4 is prime. 43 is the smallest (and perhaps only) prime p such that p^p + (largest digit of p) is also prime. [Earls]


  Submitted: 2004-07-14 17:02:49;   Last Modified: 2008-01-30 11:28:00.

Prime Curios! © 2000-2015 (all rights reserved)