Better Lesson
Better Lesson: Finding the Least Common Multiple (Lcm)
The LCM is a useful tool to use when comparing fractions and finding common denominators.
AAA Math
Aaa Math: Practice Finding Greatest Common Factor
This lesson contains a learning exercise in which the user has to find the greatest common factor and type it in. The exercise keeps track of how many right and wrong answers given and gives you a grade.
SMART Technologies
Smart: Factors and Multiples
Students are introduced to prime numbers, composite numbers, prime factorization, greatest common factor, and least common multiple in this SMART whiteboard activity.
Doina Popovici
Math Play: Factors and Multiples Game
A jeopardy style game that students can play with others or alone to practice their skills at identifying multiples and factors.
Ducksters
Ducksters: Kids Math: Simplifying and Reducing Fractions
Understand the steps to do when simplifying and reducing fractions including finding the greatest common factor on this website.
Free Math Help
Free Math Help: Greatest Common Factor
The lesson investigates the greatest common factor. Explanations and sample exercises are provided.
Wyzant
Wyzant: Finding a Gcf
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.
Wyzant
Wyzant: Finding a Gcf of Two Terms
Students find the greatest common factor of two terms. An example, practice exercises, and solutions are included.
Wyzant
Wyzant: Finding a Gcf of Two Numbers
Students find the greatest common factor of two numbers. An example, practice exercises, and solutions are included.
Wyzant
Wyzant: Factoring a Gcf From an Expression
Students review factoring a greatest common factor from an expression. The handout consists of an example and answer sheet.
ClassFlow
Class Flow: Greatest Common Factor
[Free Registration/Login Required] This flipchart assists in the instruction of finding the Greatest Common Factor. Two methods for identifying GCF are used.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Greatest Common Factor
Find a quick, concise explanation of how to find the greatest common factor. Examples are given and clearly explained.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Least Common Multiples
Find a quick, concise explanation of how to find the least common multiple. Examples are given and clearly explained.
Math Slice
Math Slice: Greatest Common Divisor (Factor)
This resource allows students to practice finding the greatest common factor among 2, 3, or 4 numbers. Students are able to select parameters of how many numbers they will compare, and the range of possible numbers. There are ten...
Math Slice
Math Slice: Least Common Multiple
This resource allows students to practice finding the least common multiple among 2, 3, or 4 numbers. Students are able to select parameters of how many numbers they will compare, and the range of possible numbers. There are ten problems...
ClassFlow
Class Flow: Reducing or Simplifying Fractions
[Free Registration/Login Required] This flipchart introduces how to simplify or reduce a fraction to the lowest terms. Prerequisites include: multiplying fractions, factoring, introduction to the concept of the Greatest Common Factor.
ClassFlow
Class Flow: Greatest Common Factor With Monomials
[Free Registration/Login Required] This flipchart addresses the use of monomials when identifying the Greatest Common Factor.
Shmoop University
Shmoop: Basic Operations: Lcm & Gcf
Students learn about the least common multiple and the greatest common factor. The resource consists of notes, step-by-step examples, and practice problems with solutions.
That Quiz
That Quiz: Factores
Interactive practice tests dealing with factors. Students will practice the prime factors, greatest common factor and least common multiple.
Calculator Soup
Calculator Soup: Common Factors Calculator
This calculator factors a set of positive integers to find the common factors (common divisors) of those integers. Enter the set of numbers you want to factor separating them with commas.
Quia
Ixl Learning: Greatest Common Factor
Brush up on your math skills relating to the greatest common factor then try some practice problems to test your understanding.