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STAAR Review - Prime & Composite
By NICHOLAS GLAESER
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Last updated 10 months ago
16 questions
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Question 1
1.
A
composite number
is a number with
more than
_______ factors.
Question 2
2.
A
prime number
is a number with
exactly
_______ factors.
Question 3
3.
Which of the following is NOT a prime number?
37
61
47
51
visibility
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Question 4
4.
Which best describes a prime number?
A number that cannot be grouped in twos.
A number than can be divided by 2 with 0 remaining
A number with more than two factors
visibility
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Question 5
5.
Which best describes a composite number?
A number that cannot be grouped in twos
A number that can be divided by 2 with 0 remaining
A number with more than two factors
visibility
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Question 6
6.
What number is neither prime nor composite?
1
2
3
4
visibility
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Question 7
7.
Which of the following is a prime number?
18
54
35
47
visibility
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Question 8
8.
Which number is even?
15
48
73
21
Question 9
9.
Which number is odd?
92
44
76
81
Question 10
10.
Which best describes an odd number?
A number that represents part of a whole.
A Number that can be divided by 2 with 0 remaining
A number based on groupings of 10.
A number that cannot be grouped in twos
Question 11
11.
visibility
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Question 12
12.
Prime numbers are all odd.
True
False
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Question 13
13.
Factors
are numbers that are __________ together.
Question 14
14.
Drag each number to either
prime
or
composite
.
23
19
27
33
51
Question 15
15.
Drag each number to either
prime
or
composite
.
28
17
2
visibility
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Question 16
16.
visibility
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A number with exactly two factors
A number with exactly two factors
Identify the numbers that are odd.
12
38
53
71
29
45
64
97
43
Prime
Composite
63
4
9
11
Prime
Composite
Select
all
the
composite
numbers from the list below. Use your divisibility rules.
7, 21, 37, 44, 51, 63, 81, 82
7
21
37
44
51
63
81
82