Two different methods of finding the greatest common factor are explained at this one page website. It is very easy to follow the step by step directions.

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

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.

This WebMath site contains a tool for locating the greatest common factor. Simply plug in the numbers and you are on your way! Use it to check your answers.

[Free Registration/Login may be required to access all resource tools.] For this learning module, students are asked to identify the common factors of two whole numbers from the basic multiplication facts. Includes video demonstrating a...

[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 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.

A walkthrough example of the discovery of the GCF of three numbers. Contains a definition as well.

From pulling out the common factors of a polynomial to giving hints on how to factor a trinomial that does not have a leading coefficient of 1, a comprehensive tutorial for factoring polynomials is given as well as practice, interactive...

Students are assessed on fractions and decimals. Topics include greatest common factor, improper fractions, and fractions as decimals. The self-checking test includes hints and solutions.

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

Math Forum response to request for info on how to find greatest common factors, and how this compares to least common multiples. Explanation includes examples of each.

Practice applying the distributive property to factor numerical expressions (no variables). Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...

Students find the greatest common factor of two numbers. An example, practice exercises, and solutions are included.

Students are introduced to prime numbers, composite numbers, prime factorization, greatest common factor, and least common multiple in this SMART whiteboard activity.

This tool allows you to create worksheets where students must find the greatest common factor in a set of two to four whole numbers.

Review a variety of number sense skills using this interactive worksheet. Concepts include greatest common factor, lowest common multiple, rounding to the nearest thousandth, and determining percent. Answers can be checked immediately...

Explore more than twenty math concepts such a perimeter, rounding, exponents, decimals, sign numbers, and more using this interactive basketball game. A Spanish version is also offered. Students results are tabulated daily.

This tool allows you to create worksheets where students must find the lowest common factor in a set of two to four whole numbers.

This site from the University of Saskatchewan provides an explanation of factoring by grouping, greatest common factor, perfect squares, and difference of squares. Higher degree polynomials factored as well. Some examples provided along...

This WebMath site provides links to tutorials and lessons in both Algebra I and II. Links to topics such as factoring, solving equations, polynomials, simplifying equations, graphing, and much more.

Quick interactive assessment which determines skill level on fraction equivalence, prime factorization, and common divisors/multiples.

An interactive quiz which provides students with two numbers and asks them to find either the Least Common Multiple or the Greatest Common Divisor between them. Students input their solution and have the program evaluate it. Hints are...