The book is now available! 1062881
(just those submitted by Caldwell)
Prime Curios!
Curios: Curios Search:


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

+ The natural numbers can be arranged into a list of ratios, all of which are integers: (1+2)/3, (4+5+6+7+8+9+10+11)/12, (13+14+15+...+36+37+38)/39, (40+41+42+...+118+119)/120.... The thirteenth of these ratios is the prime 1062881. [Caldwell]

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