G6U1質數 合數 互質 質因數 短除法
Authored by Heaven Tseng
Mathematics
6th Grade
Used 13+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
因為4和15兩數互質，所以4和15都是質數。
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
9和25沒有互質。
3.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
13和19的最大公因數是1。
4.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
16和49互質。
5.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
甲＝3×7，乙＝9×11×13，甲和乙互質。。
6.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
2、3、5都是質數，也都是30的因數，所以2、3、5都是30的質因數。
7.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
10的質因數有1、2、5。
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