The book is now available! 11
(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)

+ There is only one case of three consecutive primes all ending in 11 among the first billion primes. Can you find them? [Gaydos]

+ There are eleven strobogrammatic numbers with distinct digits (0,1,8,69,96,609,619,689,906,916,986). [Gaydos]

(There are 5 curios for this number that have not yet been approved by an editor.)

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