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Prime or Composite Worksheet - Page 3

Prime or Composite Worksheet
  • Page 3
 21.  
Identify the prime number.
a.
57
b.
9
c.
33
d.
13


Answer: (d)


Correct answer : (4)
 22.  
List all the prime numbers less than 10.
a.
2, 4, 6, 8
b.
1, 3, 5, 7, 9
c.
2, 3, 5, 7
d.
1, 2, 3, 5, 7


Answer: (c)


Correct answer : (3)
 23.  
Which of these numbers is a prime number?
a.
39
b.
19
c.
99
d.
69


Answer: (b)


Correct answer : (2)
 24.  
Identify a composite number.
a.
47
b.
24
c.
31
d.
61


Answer: (b)


Correct answer : (2)
 25.  
Which set of numbers represents all the composite numbers between 12 and 20?
a.
14, 15, 16, and 18
b.
12, 14, 15, 16, and 18
c.
13, 17, and 19
d.
12, 13, 14, 15, 16, and 18


Answer: (a)


Correct answer : (1)
 26.  
Which set of numbers represents all the prime numbers between 1 and 18?
a.
2, 3, 5, 7, 11, 13, and 17
b.
2, 3, 5, 11, 13, and 17
c.
2, 3, 5, 7, 9, 11, 13, and 17
d.
1, 2, 4, 5, 11, 13, and 17


Answer: (a)


Correct answer : (1)
 27.  
Identify a composite number.
a.
97
b.
67
c.
76
d.
61


Answer: (c)


Correct answer : (3)
 28.  
Identify a composite number.
a.
79
b.
83
c.
73
d.
98


Answer: (d)


Correct answer : (4)

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