The book is now available! 99999999977
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

                                                                9 9999999977
+ The largest 11-digit prime number, this easy-to-remember prime number (it is the concatenation of nine 9's and two 7's) could come in handy if you need to enter an eleven-digit prime number to restart your computer. [Dobb]

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