Question

Find the hcf of the following number by Factor method a) 7,18 b) 12,30,54 c) 70,14,35

Answer 1

Step-by-step explanation:

a) 2| 7, 18

3| 7,9

3| 7, 3

7| 7, 1

| 1, 1

b) 2| 12, 30, 54

2| 6, 15, 27

3| 3, 15, 27

3| 1, 5, 9

3| 1, 5, 3

5| 1, 5, 1

| 1, 1, 1

c) 2| 70, 14, 35

7| 35, 7, 35

5| 5, 1, 5

| 1, 1, 1

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