The book is now available! 141
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

+ n x 2n + 1 is a Cullen prime if n = 141. The largest known case if n is palindromic.

+ A lucky number indexed by a prime number. [De Geest]

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

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