The book is now available! 105774913
(just those submitted by Punches)
Prime Curios!
Curios: Curios Search:
 

Participate:
Share

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

+ Begins the smallest prime century that contains three Ormiston pairs and no other primes. Note that 13/31, 37/73, and 79/97 are the only Ormiston pairs that can fit together in a prime century. [Punches]




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