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Old 2010-11-12, 20:33   #48
science_man_88
 
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Jul 2009
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okay verified exception = 2^37-1 so how to compensate for exceptions if not to many.0

maybe it works for sumdigits(2^p-1) = 4 the hard part is adapting to the case when it's 1.

Last fiddled with by science_man_88 on 2010-11-12 at 20:37
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