The book is now available! 1459
(another Prime Pages' Curiosity)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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The largest denominator that the sum of the reciprocals of a number can have is 2520 (2^3 * 3^2 * 5 * 7). The smallest positive integer with this property is 5789 with a sum of reciprocals of digits of 1459/2520. [Gaydos]


  Submitted: 2018-02-27 20:33:42;   Last Modified: 2018-02-27 21:03:32.

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