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

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If t(n) represents the nth triangular number, then 31 is the smallest prime of the form t(p) + t(q), where p and q are themselves prime. [Rupinski]


  Submitted: 2003-01-02 12:13:26;   Last Modified: 2008-01-30 11:28:00.

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