Question

What is the GCF of $30$ and $42$?

Answer 1

Find GCF of $30,42$.

The factors of number $30$ are $1,2,3,5,6,10,15,30$.

The factors of a number $42$ are $1,2,3,6,7,14,21,42$.

GCF is the least common factor of $30,42$.

So, GCF is $6$.

Hence, GCF of $30,42$ is $6$.