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Worksheetsgrade9
Total questions: 15
Worksheet time: 3hrs 30mins
Name
Class
Date
1.
A prime number...
a)
has one factor.
b)
has more than 2 factors.
c)
has 100 factors.
d)
has exactly 2 factors: 1 and the itself.
2.
Which of the following is NOT prime?
a)
29
b)
23
c)
17
d)
39
3.
What are the prime factors of 30?
a)
3, 2, 5
b)
1, 2, 3, 5, 6, 15, 30
c)
3, 30
d)
10, 3
4.
Use a number tree to find the prime factorization of 48
a)
4x2x6
b)
4x2x2x3
c)
3x2x2x2x2
d)
12x4
5.
The following prime factorization represents which number: 22 x 3 x 7
a)
14
b)
84
c)
42
d)
70
6.
What is the square root of 625?
a)
21
b)
22
c)
23
d)
24
e)
25
7.
What is the value of 172 ?
a)
225
b)
256
c)
289
d)
324
8.
What is the prime factorization of 16 ?
a)
1 x 16
b)
22x 4
c)
24
d)
22 + 22
9.
If the expanded form is 2⋅2⋅2⋅3⋅3⋅5⋅7 what would the exponential form be?
a)
2⋅3⋅5⋅7
b)
2³⋅3²⋅5⋅7
c)
2²⋅3²⋅5⋅7
d)
8⋅9⋅35
10.
Write 36 as the product of it's prime factors...
a)
2 x 2 x 3 x 3
b)
2 x 2 x 2 x 3
c)
22 x 32
d)
22 x 3
11.
What is the value of 43 ?
a)
12
b)
81
c)
64
d)
16
12.
What are the missing factors?
a)
1 and 9
b)
3 and 6
c)
3 and 3
d)
1 and 8
13.
Use a number tree to find the prime factorization of the 125
a)
2x2x2x4
b)
5x5x5
c)
5x5x2
d)
2x2x2x2x1
14.
Use a number tree to find the prime factorization of 60
a)
5x3x2x2
b)
7x6x5
c)
5x3x3x2
d)
7x5x4
15.
Use a number tree to find the prime factorization of 216
a)
22x33
b)
2x3
c)
23x32
d)
3x2
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