12,9,21,5,3,10,1,15,30上面一組數(shù)中,奇數(shù)有9,21,5,3,1,159,21,5,3,1,15,偶數(shù)有12,10,3012,10,30,2和3的倍數(shù)有12,3012,30,30的因數(shù)有5,3,10,1,15,305,3,10,1,15,30,質數(shù)有5,35,3,合數(shù)有12,9,21,10,15,3012,9,21,10,15,30。
【答案】9,21,5,3,1,15;12,10,30;12,30;5,3,10,1,15,30;5,3;12,9,21,10,15,30
【解答】
【點評】
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發(fā)布:2024/5/27 14:0:0組卷:13引用:1難度:0.5