GCF Calculator

GCF Calculator with steps is used to calculate the greatest common factor of two numbers. Enter any two numbers below, and the greatest common factor calculator will calculate the GCF with step by step instructions on how to solve it.

Greatest Common Factor Calculator
Number 1:
Number 2:

What is the greatest common factor of and ?

Answer:

How to Find GCF of Two Numbers?

How to find the gcf of and ?

Method 1 - Listing Factors

To find the gcf of and , we first need to find the factors of and and then choose the greatest common factor that are dividable by and .

Factors of =
Factors of =

The greatest common factor of and is , because is the largest number that is divisible by both and .

Method 2 - Prime Factorization

Another method to find the greatest common factor of and is by using the prime factorization method.
To use prime factorization, we first need to find the prime factors of and , and then get the GCF by multiplying all the common prime factors from the two sets.

Prime factorization of =
Prime factorization of =
Prime factors to the highest power = =