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Prime And Composite Numbers
Test Description: Prime number only has 2 factors (1 and me). Composite number has 2 or more factors (divide by 2,3,4,5,6,7,8,9,10). Remember that 2 is the only even prime number.
Instructions: Answer all questions to get your test result.
1) Which of the following is a prime number?
A
6
B
9
C
4
D
3
2) Which of the following is a prime number?
A
12
B
15
C
17
D
21
3) Which of the following is a prime number?
A
27
B
25
C
29
D
24
4) Which of the following is a prime number?
A
35
B
39
C
37
D
33
5) Which of the following is a prime number?
A
40
B
43
C
48
D
45
6) Which of the following is not a composite number?
A
25
B
13
C
49
D
81
7) Which of the following is not a composite?
A
4
B
6
C
2
D
8
8) Which of the following is not a composite?
A
55
B
47
C
58
D
42
9) Which of the following lists has only 1 prime number?
A
6, 8, 9
B
2, 4, 10
C
4, 6, 8
D
4, 8, 15
10) Which of the following lists has only 1 prime number?
A
14, 16, 21, 24
B
26, 27, 33, 36
C
12, 15, 18, 21
D
15, 18, 23, 25
11) Which of the following lists have only composite numbers?
A
33, 36, 37, 39
B
50, 52, 55, 58
C
42, 45, 47, 48
D
21, 25, 27, 30
12) Which of the following lists have only composite numbers?
A
61, 62, 64, 68
B
72, 74, 75, 78
C
81, 82, 84, 85
D
92, 95, 96, 98
*select an answer for all questions
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