Question

Find the HCF of 72, 108 and 180.

A. 72

B.24

C.12

D. 36

1. D
2. B
3. C
4. A

Answer 1

Correct Answer - Option 1 : D

Given:

Numbers given are 72, 108 and 180.

Calculation:

We have to find out the HCF of 72, 108 and 180.

72 can be expressed as 2 × 2 × 2 × 3 × 3

108 can be expressed as 2 × 2 × 3 × 3 × 3

180 can be expressed as 2 × 2 × 5 × 3 × 3

As we can see, all numbers have the combination of (2 × 2 × 3 × 3) a factor.

Which means that (2 × 2 × 3 × 3) which is equal to 36 is HCF of 72, 108 and 180.

∴ The value of HCF of 72, 108 and 180 is 36.