The book is now available! 11111...77777 (25-digits)
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:

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

                                                 11111 1111111117 7777777777
+ Seven 11's followed by eleven 7's is prime. Note that 7 and 11 are two consecutive primes. [De Geest]

Prime Curios! © 2000-2019 (all rights reserved)  privacy statement