80

12

80

12

72

12

8

12

8

12

6

8

12

6

8÷2

12÷2

6

4

6

6

4÷2

6÷2

6

2

3

or

80

12

72

12

8

12

8

12

6

8

12

6

8

12

6

2 × 2 × 2

2 × 2 × 3

6

6

2

3

or

Common Divisors for 8 and 12 are: 2 and 2

Greatest Common Divisor = 2 × 2 = 4

6

80÷4

12÷4

6

2

3