The book is now available! 29998999999999999999999
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

                                                   299 9899999999 9999999999
+ The smallest prime with an additive persistence (defined in the first curio for 199) equal to the smallest composite number. Can you explain why this book doesn't list a prime with persistence one higher? [Gupta]

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