18的因数:1,2,3,6,9,18
24的因数:1,2,3,4,6,8,12,24
18和24的公因数:2,3,6,
40以内4的倍数:4,8,12,16,20,24,28,32,36
50以内6的倍数:6,12,18,24,32,40,48
40以内和05以内6的公倍数:
18的因数:1,2,3,6,9,18
24的因数:1,2,3,4,6,8,12,24
18和24的公因数:2,3,6,
40以内4的倍数:4,8,12,16,20,24,28,32,36
50以内6的倍数:6,12,18,24,32,40,48
40以内和05以内6的公倍数: