This number is a prime.

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The first successful identification of a Mersenne prime by means of electronic digital computer was achieved in the year 1952, using the U.S. National Bureau of Standards Western Automatic Computer (SWAC) at the Institute for Numerical Analysis at the University of California, Los Angeles. It was M(521).

Submitted: 2000-07-25 14:50:35;   Last Modified: 2009-01-22 19:56:40.
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