The book is now available! 2347
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ This prime is the concatenation of the Sophie Germain prime p=23 and the corresponding safe prime 2p+1. It is the largest such prime to have non-decreasing digits. [Hasler]

(There is one curio for this number that has not yet been approved by an editor.)




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