Factors and Greatest Common Factor

How Do You Find the Greatest Common Factor of Two Numbers Using Prime Factorization?

This tutorial uses something called a factor tree to find the greatest common factor of two numbers. Creating a factor tree for a number makes it easier to find its prime factors. These prime factors are used to help find the greatest common factor. Watch this tutorial and learn how to find the greatest common factor using a factor tree.
How Do You Find the Greatest Common Factor of Three Numbers?

To find the greatest common factor (GCF) between numbers, take each number and write its prime factorization. Then, identify the factors common to each number and multiply those common factors together. Bam! The GCF! To see an example worked out, check out this tutorial!
How Do You Find the Prime Factorization of a Number Using a Tree?

To write the prime factorization for a number, it's often useful to use something called a factor tree. Follow along with this tutorial and see how to use a factor tree to find the prime factorization of a given number.
What's a Factor?

Factors are a fundamental part of algebra, so it would be a great idea to know all about them. This tutorial can help! Take a look!
How Do You Find All the Factors of a Number?

Trying to find all the factors of a number? Setting up a table can be really helpful! Check out this tutorial to see how to use a table to find all the factors of a given number.