The book is now available! 42107
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

+ The only 2-sphenic number such that one of its digits is equal to the sum of the other digits, i.e., 42107 = 13 * 41 * 79. [Loungrides]




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