The book is now available! 41223...99997 (47-digits)
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

                         4122333 4444555556 6666677777 7788888888 9999999997
+ The only prime formed by inserting, between the digits of a double-digit number n, the concatenation in order of all the digits d, d times each of them, n=47. [Loungrides]

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