The book is now available! 6666666666
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ The only 10-digit rep-digit number such that the sum of itself and all of its truncations plus one is prime, i.e., 6666666666+666666666+66666666+6666666+666666+66666+6666+666+66+6+1=7407407401. [Loungrides]

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