Question

H.C.F. of $6,72$ and $120$ is:

• A. $6$
• B. $2$
• C. $3$
• D. $1$

Answer 1

The correct option is A $6$

Factors of 6 are $1,2,3,6$
Factors of 72 are $1,2,3,4,6,8,9,12,18,24,36,72$
Factors of 120 are $1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120$
The highest factor in all the three is $6$ .