72 | ||||||||||

2 | 36 | |||||||||

2 | 18 | |||||||||

2 | 9 | |||||||||

3 | 3 | |||||||||

72 = 2 x 36

36 = 2 x 18

18 = 2 x 9

9 = 3 x 3

If we write into multiples it would be 72 x 2

On splitting 36 further and writing it as multiples of numbers it would be 18 x 2.

On splitting 18 further and writing it as multiples of numbers it would be 9 x 2.

On splitting 9 further and writing it as multiples of numbers it would be 3 x 3.

Altogether expressing the number in terms of prime factors would be 2 x 2 x 2 x 3 x 3.

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