Question

Find the HCF of 288, 504, 648.

• A. 84
• B. 32
• C. 64
• D. 72

Answer 1

The correct option is D 72

H.C.F of three given numbers = H.C.F of (H.C.F of any two numbers), third number

First, find the H.C.F of 288 and 504.

$\therefore$ H.C.F of 288 and 504 is 72.

Now, find the H.C.F of 72 and 648.

$\therefore$ H.C.F of 72 and 648 is 72.

Hence, H.C.F of 288, 504, 648 is 72.