Question

What is the highest factor that can divide 200 and 20 completely?

• A. 10
• B. 20
• C. 5
• D. 1

Answer 1

The correct option is B 20

200 is a multiple of 20. So, 20 is the HCF of the pair 200 and 20.

Or,

Factors of 200: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100 and 200
Factors of 20: 1, 2, 4, 5, 10 and 20

The HCF is 20.