The book is now available! 63
(just those submitted by Necula)
Prime Curios!
Curios: Curios Search:


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

+ 63 is the smallest number that can be expressed with 3 identical odd prime digits: 63 = 333 in base 4. [Necula]

Prime Curios! © 2000-2018 (all rights reserved)  privacy statement