The book is now available! 321
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ The 321th prime is 2131, which can be written with all the digits of 321. It's the smallest composite number to have this property. [Capelle]

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




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