number theory: division rule for 7 in base 8?  TOPIC_SOLVED

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number theory: division rule for 7 in base 8?

Postby Mike MacClure on Thu Aug 30, 2012 2:09 am

There is a theorem in base 10 that if the sum of the digits in a number equals either nine or a number that is divisible by nine, then the original is also divisible by nine.
My question is will this be true for 7 in base 8 as well?
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Re: number theory: division rule for 7 in base 8?  TOPIC_SOLVED

Postby maggiemagnet on Thu Aug 30, 2012 12:13 pm

I think so. Try here and here for more info.
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