1. 4&6公倍數(20-50)
2. HCF是4
2.2x2 , 2x3x5
2x3 , 3x3x5
2x2x3 , 2x2x2x2
2x2x3 , 2x2x2x3
收錄日期: 2021-04-12 21:47:51
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070712000051KK03743