
因數倍數
Authored by 子軒曾 子軒曾
Mathematics
6th - 8th Grade
Used 3+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
光棍「1」是質數嗎?
是
不是
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列何者不是 60的質因數?
2
3
5
7
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知48=24×3,則下列何者是48的因數?
2×32
2×3
22×32
2×3×5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(甲)所有偶數都是合數。
(乙)所有奇數都是質數。
(丙) 1是質數。
(丁) 20~30間共有2個質數。
以上四個敘述中,正確的有幾項?
0
1
2
3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在76、459、147、237、1234、6590六個數當中,是2的倍數的有多少個?
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在0、1、2、3、29、63、91、97
這些數中,共有多少質數?
1
2
3
4
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