下面整數中,哪一個只有1和自己本身兩個因數?
升六-資優-因數&倍數&質數&合數&最大公因數

Quiz
•
Mathematics
•
6th Grade
•
Medium
陳柏均 陳柏均
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12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
53
27
28
33
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
比1大的數,「至少」會有幾個因數?
1個
2個
3個
4個
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一個整數的「最大因數」是多少?
1
0
自己本身的數
自己本身的數的一半
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下面哪一個數字,是任何數的因數?
0
1
2
3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
質數是指只有1和自己本身兩個因數的整數。下面整數中,哪一個是質數?
37
51
49
33
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
30的因數中,哪一個不是質數?
2
3
5
6
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
75的因數中,共有「幾個」比1大且是5的倍數的數?
2個
3個
4個
5個
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