80

28

80

28

56

28

24

28

24

28

2

24

28

2

24÷2

28÷2

2

12

14

2

12÷2

14÷2

2

6

7

or

80

28

56

28

24

28

24

28

2

24

28

2

24

28

2

2 × 2 × 2 × 3

2 × 2 × 7

2

2

6

7

or

Common Divisors for 24 and 28 are: 2 and 2

Greatest Common Divisor = 2 × 2 = 4

2

80÷4

28÷4

2

6

7