The book is now available! 5477
(just those submitted by Gaydos)
Prime Curios!
Curios: Curios Search:


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

+ Is 5477^2 the largest square that has no digits in common with the next highest square? 5477^2 = 29997529 and 5478^2 = 30008484. [Gaydos]

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