The book is now available! 258
(just those submitted by Gaydos)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

Just showing those entries submitted by 'Gaydos': (Click here to show all)

+ The concatenation of all of the permutations of the digits of 258 in order (258285528582825852) falls between a pair of prime twins. Is there any larger number for which this is true? [Gaydos]

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