2.3 Greatest common factors (GCF)
Do better in math today

Start my free trial

Greatest common factors (GCF)

Greatest Common Factor (GCF) is the biggest number which can divide two or more numbers. We can find the GCF by applying prime factorization to the numbers in questions. Another very similar concept that also requires prime factorization is called the least common multiple (LCM). In this lesson, we are going to use the "cake method" to solve the questions.


Greatest Common Factors (GCF): The largest number that divides each of the given numbers.

  • 1.
    Find the greatest common factor (GCF)
Teacher pug

Greatest common factors (GCF)

Don't just watch, practice makes perfect.

We have over 2730 practice questions in Pre-Algebra for you to master.