Free online calculator provides help with finding the greatest common factor.

Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of greatest common factors. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the...

Purplemath shows an easy and orderly way to determine the GCF and LCM of any two numbers. Even large numbers won't be a challenge with this method.

A page which generates number pairs and allows the user to find and enter the GCF. Keeps a running tally of correct/incorrect answers and has links to in depth review, if needed.

Find the greatest common factor between two numbers. You may set the total number of problems per page, the minimum and maximum numbers, and an answer key is optional.

Students use a graphing calculator to find the Greatest Common Factor of two or more numbers.

Excellent tutorial on GCF of polynomials, including examples and step-by-step instruction on factoring.

This lesson focuses on the greatest common factors it poses real situations and asks students answer them and then it provides more information and more exercises.

Sixth graders find the greatest common factor and least common multiple of numbers.

Find the greatest common factor of 2 or 3 integers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This lesson plan is for an activity using rods (Cuisenaire Bars) to help young scholars understand the concept of factors, in particular the LCM and GCF of two numbers.

This site provides students practice with the concept of least common multiples and greatest common factors. Students can learn about the topic by completing an interactive tutorial. Students can then take a ten question timed test to...

In this lesson from WyzAnt, students learn how to find the greatest common factor (GCF) for numbers and expressions. There are practice problems and a GCF calculator for assistance.

This tutorial demonstrates how to factor the GCF out of a polynomial expression. An online worksheet is provided for extra practice.

Find a quick, concise explanation of how to find the greatest common factor. Examples are given and clearly explained.

Solve word problems where you either need to find the GCF or LCM. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to identify the greatest common factor of two whole numbers that are one or two digits. Includes video demonstrating a...

In this video, learn how to find the greatest common factor of two numbers. Then, see how this can be used to solve problems with large numbers. In the accompanying classroom activity, students learn to find prime factors using factor...

Sixth graders will learn how to find the Greatest Common Factor of two or more numbers by using math manipulatives.

This task asks students to apply the concepts of factors, common factors, and the greatest common factor in an abstract context. Aligns with 6.NS.B.4.

Math Forum response to question about finding the greatest common factor by using the factoring tree method.

This site provides a detailed example of how to locate the greatest common factor. Is useful for students who need additional help in learning to find the greatest common factor.

Sixth graders will relate area of rectangles to the distributive property.

Explore the world of Highest Common Factor or Greatest Common Factor (GCF) by going through its various aspects and properties. Find answers to questions like what is the highest common factor for a group of numbers, easy ways to...