Finding Greatest Common Factor Worksheet

ADVERTISEMENT

Name:
Finding Greatest Common Factor
Determine the greatest common factor (GCF) of each set of numbers.
A n s w e r s
12 , 16
To find the GCF of 12 & 16, first write down the factors of each number.
4
1.
1
,
2
,
3
,
4
,
6
,
12
Factors of 12
3
1
2
4
8
16
,
,
,
,
2.
Factors of 16
2 & 4 are factors both 12 and 16 have in common, with 4 being the greatest. So 4 is the GCF.
6
3.
2
1) 24 , 20
4.
1
2
3
4
6
8
12
24
Factors of 24
,
,
,
,
,
,
,
6
1
2
4
5
10
20
Factors of 20
,
,
,
,
,
5.
2) 21 , 33
5
6.
1
3
7
21
Factors of 21
,
,
,
6
1
3
11
33
Factors of 33
,
,
,
7.
3) 30 , 12
3
8.
1
2
3
5
6
10
15
30
Factors of 30
,
,
,
,
,
,
,
1
2
3
4
6
12
Factors of 12
,
,
,
,
,
3
9.
4) 10 , 6
1
2
5
10
Factors of 10
,
,
,
1
2
3
6
Factors of 6
,
,
,
5) 6 , 36
1
2
3
6
Factors of 6
,
,
,
1
2
3
4
6
9
12
18
36
Factors of 36
,
,
,
,
,
,
,
,
6) 10 , 15
1
2
5
10
Factors of 10
,
,
,
1
3
5
15
Factors of 15
,
,
,
7) 30 , 6
1
2
3
5
6
10
15
30
Factors of 30
,
,
,
,
,
,
,
1
2
3
6
Factors of 6
,
,
,
8) 15 , 6
1
3
5
15
Factors of 15
,
,
,
1
2
3
6
Factors of 6
,
,
,
9) 45 , 42
1
3
5
9
15
45
Factors of 45
,
,
,
,
,
1
2
3
6
7
14
21
42
Factors of 42
,
,
,
,
,
,
,
1-9
89 78 67 56 44 33 22 11 0
7
Math

ADVERTISEMENT

00 votes

Related Articles

Related forms

Related Categories

Parent category: Education
Go
Page of 2