The book is now available! 11111...11111 (3269-digits)
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

+ A modified Palindromic Wing Number (modified because it has three digits in the center that differ from the rest instead of just one) that is a Fermat and Lucas PRP. [Earls]

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