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

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There are no nines in the first 71 multiples of 125. Is there any number that has more than 71 nineless first n multiples? [Gaydos]

 

  Submitted: 2018-12-20 04:00:11;   Last Modified: 2018-12-20 08:18:03.



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