The book is now available! 351725765537
(just those submitted by Rivera)
Prime Curios!
Curios: Curios Search:


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

+ The concatenation of the five known Fermat primes 3, 5, 17, 257, and 65537. Concatenate them backwards, 655372571753, and it remains prime. [Rivera]

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