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G6U1質數 合數 互質 質因數 短除法

Authored by Heaven Tseng

Mathematics

6th Grade

Used 12+ times

G6U1質數 合數 互質 質因數 短除法
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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。

O
X

2.

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

9和25沒有互質。

O
X

3.

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

13和19的最大公因數是1。

O
X

4.

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

16和49互質。

O
X

5.

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

甲=3×7,乙=9×11×13,甲和乙互質。。

O
X

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。

O
X

7.

MULTIPLE CHOICE QUESTION

20 sec • 5 pts

10的質因數有1、2、5。

O
X

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