1,2,3, 6,7,8,9,10,11,12,13,14,15公倍数?答:9的倍数:9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135...10的倍数:10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150...11的倍数:11, 22, 33, 44, 55, 66, 77, 88, 99, 110, 121, 132, 143, 154, 165...12...
同时是1,2,3,4,5,6,7,8,9的倍数答:1,3,5,7,9的倍数是1X5X7X9=315 1,2,3,4,5,6,7,8,9的倍数就是1X2X4X5X7X9=2520
1~100所有的倍数和因数列表答:6的倍数:6,12,18,24,30,36,42,48,54/6的因数:1,2,3,67的倍数:7,14,21,28,35,42,49,56,63/7的因数:1,78的倍数:8,16,24,32,40,48,56,64,72/8的因数:1,2,4,89的倍数:9,18,27,36,45,54,63,72,81/9的因数:1,3,910的倍数:10,20,30,40,50,60,70,80,90/10的因数:1,2,...