Question

HCF of $24$ and $36$ is ..............

• A. $6$
• B. $4$
• C. $9$
• D. $12$

Answer 1

The correct option is D $12$

$2\underset{–}{|24}2\underset{–}{|36}$

$2\underset{–}{|12}2\underset{–}{|18}$
$2\underset{–}{|6}3\underset{–}{|9}$
$3\underset{–}{|3}3\underset{–}{|3}$
1 1

$24=2\times 2\times 2\times 3$

$36=2\times 2\times 3\times 3$

$\therefore H.C.F=2\times 2\times 3=12$