Question

Find the HCF of 72, 108 and 196.
1. 2
2. 3
3. 4
4. 9

Answer 1

Correct Answer - Option 3 : 4

Given:

The numbers are 72, 108 and 196

Concept Used:

The greatest number which divides a given set of numbers is the HCF of that given set of numbers.

Calculation:

According to the question, we have

72 = 2³ × 3²

108 = 2² × 3³

196 = 2² × 7²

Now,

HCF = 2²

⇒ 4

∴ The HCF of 72, 108 and 196 is 4.