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2010-04-18, 02:22   #4
lfm

Jul 2006
Calgary

52×17 Posts

Quote:
 Originally Posted by CADavis http://mersenne-aries.sili.net/digits.php calculate number of digits from an exponent i think it something above 332,000,000 for the exponent to give a 100M digit mersenne number.
Its pretty easy if you have a proper calculator. Just 1e6*ln(10)/ln(2)=3321928.09 or so.