96

78

96

78

78

78

18

78

18

78

1

18

78

1

18÷2

78÷2

1

9

39

1

9÷3

39÷3

1

3

13

or

96

78

78

78

18

78

18

78

1

18

78

1

18

78

1

2 × 3 × 3

2 × 3 × 13

1

1

3

13

or

Common Divisors for 18 and 78 are: 2 and 3

Greatest Common Divisor = 2 × 3 = 6

1

96÷6

78÷6

1

3

13