請幫我質因數連乘式計以下題目:
H.C.F:
1:28,32
2:57,75
L.C.M:
1:5,9,15
質因數連乘式
2009-09-09 2:14 am
回答 (1)
2009-09-12 11:33 am
✔ 最佳答案
H.C.F:1:28,32
28 = 2 * 2 * 7
32 = 2 * 2 * 2 * 2 * 2
HCF = 2*2 = 4
2: 57,75
57 = 3 * 19
75 = 3 * 5 * 5
HCF = 3
L.C.M:
1: 5,9,15
5 = 5
9 = 3 * 3
15 = 3 * 5
LCM = 3*3*5= 45
收錄日期: 2021-04-21 22:03:36
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090908000051KK01079