The book is now available! 9080191
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

+ The first composite number (2131*4261) to be a strong probable prime to bases 31 and 73 (the pair of bases that yield the largest first "false" result using strong probable prime tests).

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