Greatest Common Factor of Monomials
To find the greatest common factor of two monomials, first find the prime factorization of each monomial, including all the variables (and a – factor if necessary).
Then take the product of all common factors.
Example:
Find the GCF of:
and
First, find the prime factorization of each monomial.
Common factors are shown in red. Their product is:
So, the GCF is .