Question

What is the HCF of $45,30,15$?

Answer 1

Find HCF of $45,30,15$.

HCF of two or more numbers is the greatest number that can divide the numbers exactly.

Factors of $45$ are $1,3,5,9,15,45$.

Factors of $30$ are $1,2,3,5,6,10,15,30$.

Factors of $15$ are $1,3,5,15$.

HCF of numbers is $15$.

Hence, the HCF of numbers is $15$.