Re: Mersenne: # of digits in 2^p-1

[Lucas Wiman]

> What's the best way of finding the number of decimal digits for the number
> 2^p-1 ?

> Mersenne Prime FAQ      -- http://www.tasam.com/~lrwiman/FAQ-mers
                 ^^^         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Q5.3.  It's no good unless people read it!

-Lucas
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