The book is now available! 17444...11777 (9929-digits)
(just those submitted by Earls)
Prime Curios!
Curios: Curios Search:


Just showing those entries submitted by 'Earls': (Click here to show all)

+ 2808976*676^3506+1 is prime. Multiply the nonzero digits of the squares 2808976 and 676 to get palindromes, and reverse 3506 to get a prime. [Earls]

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