Question

What is the HCF of 144 and 48?

• A. 48

Answer 1

The correct option is A 48
To find the HCF let's prime factorize 24 and 48:

$144=2\times 2\times 2\times 2\times 3\times 3$
$48=2\times 2\times 2\times 2\times 3$

The HCF $=2\times 2\times 2\times 2\times 3\times 3$= 48

Therefore, 48 is the Highest Common Factor.