Finding Greatest Common Factor - 3 Numbers (Level 3)

This math topic focuses on finding the greatest common factor (GCF) of three numbers, enhancing essential factoring skills. Each problem provides a set of three numbers, and students must determine their GCF from multiple choice options. This exercise forms part of a broader unit centered on factoring and GCF practices, aimed at solidifying foundational arithmetic skills necessary for more advanced mathematical concepts. The questions vary slightly in their numeric combinations, presenting diverse challenges to test and strengthen the students' ability to identify common factors among numbers.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Finding Greatest Common Factor - 3 Numbers Worksheet

Math worksheet on 'Finding Greatest Common Factor - 3 Numbers (Level 3)'. Part of a broader unit on 'Factoring and Greatest Common Factor - Advanced' Learn online: app.mobius.academy/math/units/factoring_and_greatest_common_factor_advanced/

1

Find the greatest common factor of these numbers

18, 9, 12

a

10

b

2

c

3

d

1

e

21

f

18

2

Find the greatest common factor of these numbers

18, 15, 6

a

15

b

9

c

3

d

20

e

2

f

1

3

Find the greatest common factor of these numbers

18, 10, 16

a

4

b

6

c

1

d

7

e

5

f

2

4

Find the greatest common factor of these numbers

18, 9, 15

a

1

b

18

c

13

d

8

e

3

f

15

5

Find the greatest common factor of these numbers

16, 14, 10

a

4

b

10

c

9

d

1

e

11

f

2

6

Find the greatest common factor of these numbers

12, 6, 15

a

1

b

10

c

12

d

2

e

3

f

6

7

Find the greatest common factor of these numbers

12, 15, 9

a

3

b

20

c

14

d

4

e

18

f

21