The book is now available! 28019
(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 28019th triangular number (392546190) is the smallest whose prime factors together (2*3*5*467*28019) are pandigital. [Gaydos]


  Submitted: 2018-11-13 17:56:50;   Last Modified: 2018-11-13 18:06:45.

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