The book is now available! 3407
(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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(3407, 7043) is the only pair of 4-digit distinct-digit emirps whose one digit is equal to the sum of the other digits. [Loungrides]


  Submitted: 2011-11-08 06:22:31;   Last Modified: 2018-04-14 17:17:14.

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