The book is now available! 91111...11119 (247-digits)
(another Prime Pages' Curiosity)
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                                    9111111 1111111111 1111111111 1111111111
1111111111 1111111111 1111111111 1111111111 1111111111 1111111111 1111111111
1111111111 1111111111 1111111111 1111111111 1111111111 1111111111 1111111111
1111111111 1111111111 1111111111 1111111111 1111111111 1111111111 1111111119
+ 8*10246+(10247-1)/9+8 was the largest known depression prime in 1991. [Caldwell]

(There is one curio for this number that has not yet been approved by an editor.)




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