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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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77^77*78^78-1 is the only non-titanic prime of form a^a*b^b-1, where a, b are successive numbers that are both composite. [Loungrides]

 

  Submitted: 2016-09-22 09:02:03;   Last Modified: 2018-04-23 10:48:56.



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