The book is now available! 684869
(just those submitted by Gupta)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share

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

+ The first occurrence of two consecutive primes (684869, 684889) such that both use all of the composite digits. [Gupta]




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