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因為36=4×9,且4與9互質,所以這個六位數應既能被4整除又能被9整除.六位數.15ABC6能被4整除,就要.C6能被4整除,囙此C可取1,3,5,7,9.要使所得的商最小,就要使.15ABC6這個六位數盡可能小.囙此首先是A儘量小…
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