Question

Find the H.C.F of 24, 16, 36 and 48.

• A. 5
• B. 9
• C. 1
• D. 4

Answer 1

The correct option is D 4

Using prime factorisation method to find the H.C.F.,

$24=2\times 2\times 2\times 3$
$16=2\times 2\times 2\times 2$
$36=2\times 2\times 3\times 3$
$48=2\times 2\times 2\times 3\times 2$

The Highest Common Factor (HCF) of two or more given numbers is the highest (or greatest) of their common factors.

$\therefore$ H.C.F. = $2\times 2$ = 4