The book is now available! 121392937879
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
                                                               12 1392937879
+ The only prime concatenated from all the emirps (1213, 7879, 9293) that are formed by concatenating in ascending order two consecutive double-digit numbers. [Loungrides]




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