The book is now available! 18181
(just those submitted by Bajpai)
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 'Bajpai': (Click here to show all)

+ 18181 is strobogrammatic and well as a tetradic prime. [Bajpai]

+ The only palindromic prime P that is the sum of the squares of the first n oban numbers, i.e., (3^2 + 5^2 + 6^2 +...+ 39^2 + 50^2), (case n=30). Curiously, sod(P) is the smallest invertible prime. [Bajpai]

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