The book is now available! 14682887281
(another Prime Pages' Curiosity)
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                                                                1 4682887281
+ The numbers 1429, 1428571429, 1428571428571429... form a sequence equal to (10^(6n+4)+3)/7. 14682887281 is the largest prime factor of the first composite number in this sequence (it has the factorization 157*601*1031137*14682887281).

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