The book is now available! 8573
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

+ A prime number with distinct digits, each of which is a primitive root modulo that prime. There are only six such numbers and this one is the largest (the others are 53, 827, 2357, 6827, and 8237). [Vantieghem]

Prime Curios! © 2000-2018 (all rights reserved)