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Old 2017-01-05, 17:26   #1
fivemack
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Feb 2006
Cambridge, England

193516 Posts
Default I guess this is OPN-related

factordb.com suggests that (n^61-1)/(n-1) has been carefully factored for all n<1000, though rather neglected above that value. I wonder why that was done?

Last fiddled with by fivemack on 2017-01-05 at 17:27
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