Name: __________________________________________________
Let’s Find the Greatest Common Factor
For each set of numbers
below, find the greatest
common factor (GCF).
A
Example: 6
9
1
1
2
3
12
18
B
22
36
C
28
42
D
E
6
GCF
3
GCF
________
GCF
________
GCF
________
35
GCF
84
________
54
102
F
3
9
72
108
Copyright © 2014 k12mathworksheets.com. All Rights Reserved. Free for educational use at home or in classrooms. GCF
________
GCF
________
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Key
Name: __________________________________________________
Let’s Find the Greatest Common Factor
For each set of numbers
below, find the greatest
common factor (GCF).
A
B
C
D
E
F
Example: 6
9
1
1
2
3
3
9
6
GCF
3
12
1
2
3
4
6
12
GCF
18
1
2
3
6
9
18
6
________
22
1
2
11 22
36
1
2
3
4
6
28
1
2
4
7
14 28
42
1
2
3
6
7
35
1
5
7
35
84
1
2
4
6
7
12 14 21 42 84
54
1
2
3
6
9
18 27 54
102 1
2
3
4
6
17 26 34 51 102
6
________
8
9 12 18 24 36 72
GCF
72
1
2
3
4
6
GCF
9
12 18 36
14 21 42
2
________
GCF
14
________
GCF
108 1 2 3 4 6 9 12 18 27 36 54 108
Copyright © 2014 k12mathworksheets.com. All Rights Reserved. Free for educational use at home or in classrooms. 7
________
GCF
36
________
www.k12mathworksheets.com