26,65第３個公倍ｉｓ ｗｈａｔ？？
Ａ．１３
Ｂ．３９
Ｃ．１３０
Ｄ．３９０
HCF is 20 ??
A.2x2x5 , 2x3x5
B.3x3x5 , 2x3x3x3
C.2x2x3x3 , 2x3x3x5
D.2x2x3x5 , 2x2x2x5
Ｐ． 6 數...Help
2007-07-05 2:05 am
回答 (3)
2007-07-05 2:17 am
✔ 最佳答案
26and65的l.c.m是130,第3個l.c.m便是d360了2條是d.只有d(60)和(40)的h.c.f is20
ps:60的因數:1,2,3,4,5,6,10,15,20,30
40的因數:1,2,4,5,8,10,20
所以h.c.f是20.
2007-07-26 19:17:47 補充：
very good and very clear!!!
參考: me
2007-07-05 2:10 am
1.D
2.D
2.D
收錄日期: 2021-04-12 21:47:03
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070704000051KK03281