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25:末兩位是25的倍數 8:末三比特是8的倍數 125:末三比特是125的倍數 7:末三比特與前面之差是7的倍數 9:各位數位相加的和是9的倍數 11:末三比特與前面之差是11的倍數 13:末三比特與前面之差是13的倍數
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