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

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The smallest 10-digit emirp that remains an emirp after rightmost digits are omitted two at a time. [Honaker]


  Submitted: 2009-09-19 16:04:05;   Last Modified: 2015-02-20 14:15:33.

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