88

84

88

84

84

84

4

84

4

84

1

4

84

1

4÷2

84÷2

1

2

42

1

2÷2

42÷2

1

1

21

or

88

84

84

84

4

84

4

84

1

4

84

1

4

84

1

2 × 2

2 × 2 × 3 × 7

1

1

1

21

or

Common Divisors for 4 and 84 are: 2 and 2

Greatest Common Divisor = 2 × 2 = 4

1

88÷4

84÷4

1

1

21