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

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97:31:31:79 is the longest emirp duration that along with its reversal (97:13:13:79) can both be timed on a seven-segment digital chronometer stopwatch simultaneously in emirp hours, emirp minutes, emirp seconds, and emirp hundredths of a second. [Beedassy]


  Submitted: 2010-02-17 09:09:57;   Last Modified: 2010-02-17 20:31:54.

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