The book is now available! 5
(just those submitted by Astle)
Prime Curios!
Curios: Curios Search:

GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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

+ The length of the side of a basic pantactic square (see Brian Astle, "Pantactic Squares" Math Gazette 1965, pp.144-52). [Astle]

Prime Curios! © 2000-2020 (all rights reserved)  privacy statement