2和5倍数10,20,30,40,50,60,70,80,90。24的因数有1,24,2,12,3,8,4,6。63的因数1,36,2,18,3,12,4,9,6。3和5的倍数15,30,45,60,75。12倍数12,24,48,60,72,84,96。9的倍数9,18,27,36,45,54,63,72,81
