The book is now available! 2161
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share
+ The smallest prime which is one more than the product of four distinct composite numbers. [Porter]

+ The first prime after 3 for which n*10^n+1 is also prime (a generalized Cullen prime).

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




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