3的倍数条件是三个数相加能整除3.故选择有543,405。543:345,354,435,453,534,543.405:405,450,504,540
奇数:403,453,503,543 ,405,305,偶数:430,340,450,540,350,530,354,534,304,5042的倍数:430,340,450,540,350,530,354,534,304,5045的倍数:405,305,345,435,430,340,450,540,350,530,3的倍数:453,543,504,540,450,405既是2的倍数又是3的倍数:534,354,504,540,