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User talk:Mgao

Revision as of 10:23, 19 July 2006 by JBL (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Your divisibility rule for powers of 3 is wrong. Consider 1899, whose digits sum to 27 but which is not divisible by 27. --JBL 10:23, 19 July 2006 (EDT)

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