Download Practice 9.3 Greatest Common Factor

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Name
Practice
9.3
Date
Greatest Common Factor
List the factors of each number. Then find the greatest common factor of the numbers.
1.
28
32
2.
12
18
3.
21
40
4.
16
32
5.
35
42
6.
20
33
7.
32
45
8.
18
22
9.
19
38
Write the prime factorization using exponents of each number. Then find the greatest
common factor (GCF) of the numbers.
10.
12
15
11.
8
13.
60
72
14.
66
18
99
12.
10
45
15.
42
126
Test Prep
16.
Find the GCF of 18 and 42.
A
2
C
6
B
3
D
18
Copyright © Houghton Mifflin Company. All rights reserved.
17.
Find the GCF of 32 and 36. Explain how
you got your answer.
Use with text pages 228–231.
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