# How do you find the GCF of #42a^2b, 6a^2, 18a^3#?

##### 1 Answer

Nov 30, 2017

Greatest Common Factor ( GCF ) of the three algebraic expressions given is equal to

#### Explanation:

The Highest Common Factor (HCF) or the Greatest Common Factor (GCF) of algebraic expressions is obtained in a similar way to the method used for numbers.

Write the factors of

Write the factors of

Write the factors of

We observe that the common factors are

Hence, GCF = Product of common factors =

I hope this procedure helps.