The book is now available! 19
(just those submitted by Axoy)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share

Just showing those entries submitted by 'Axoy': (Click here to show all)

+ 19 is the only prime p less than 30 that does not divide 30, where p + 30 is composite. [Axoy]




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