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Old 2014-12-19, 16:26   #2
Mini-Geek
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"Tim Sorbera"
Aug 2006
San Antonio, TX USA

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http://www.mersenne.org/various/math.php mentions this at the end of the LL section.
Quote:
This simplifies to 64 / 5000070 or 1 in 78126. This simple approach isn't quite right. It would give a formula of how_far_factored divided by (exponent divided by 2). However, more rigorous work has shown the formula to be (how_far_factored-1) / (exponent times Euler's constant (0.577...)). In this case, 1 in 91623. Even these more rigourous formulas are unproven.
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