The book is now available! 190633
(just those submitted by Hartley)
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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 'Hartley': (Click here to show all)

+ 2^^n-7 = 2^(2^(2^...(2^2)..))-7 is divisible by 190633 for all sufficiently large n. 190633 is the only prime (besides 3) less than a million for which this is true. [Hartley]

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