The book is now available! 31513
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

+ The smallest multi-digit palindromic prime such that the sum of square of its digits is equal to the product of its digits. [Russo]

(There are 2 curios for this number that have not yet been approved by an editor.)

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