# Greatest Common Factor Teacher Resources

Find Greatest Common Factor lesson plans and worksheets
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Lesson Planet

#### Common Core Algebra 1, Unit 9: Factoring

For Teachers 9th - 10th Standards
To begin Unit 9 in the Common Core Algebra I series, scholars view a video presentation on determining the greatest common factor for algebraic expressions. They see how to use factoring and the zero product property to solve polynomial...
EngageNY

#### EngageNY Grade 6 Math Module 2: Arithmetic Operations Including Division of Fractions

For Teachers 6th Standards
Twenty-one lessons and two exams make up a math unit all about decimal operations and division of fractions. By way of direct instruction, discussion, guided practice, collaborative learning, and independent practice scholars solve...
Lesson Planet

#### Study Jams! Greatest Common Factor

For Students 5th - 8th Standards
When one method isn't enough to teach GCF, try two! This interactive webpage introduces factors and the prime factor tree to find the greatest common factor of two numbers. After the lesson, have learners click to try the two examples...
3:13
Lesson Planet

#### Monomial Greatest Common Factor

For Students 9th - 11th
Sal explains that the greatest common factor of any number is the largest number divisible into both monomials and not necessarily the number with greatest value. He breaks down two numbers into their prime factors as a product of its...
4:57
Lesson Planet

#### How Do You Factor a Greatest Common Factor Out of an Expression?

For Teachers 6th - 9th
What is the greatest common factor of two terms in an expression? First prime factor each of the terms. Then find the factors that they have in common. Multiply if needed. That is how to find the greatest common factor. Watch the video...
5:55
Lesson Planet

#### How Do You Find the Greatest Common Factor of Two Numbers by Listing Their Factors?

For Teachers 5th - 8th
Greatest common factor, least common multiple, prime factorization, multiples, factors, oh my! The instructor in this video shows how to make different lists of factors to find the greatest common factor. So take a peak and see how to...
3:03
Lesson Planet

#### How Do You Find the Greatest Common Factor If There are No Common Factors?

For Teachers 6th - 9th
Use prime factorization to find the greatest common factor of three given values. Okay. But what if there doesn't seem to be any integer that is common in all three given values? Well, then, the greatest common factor must be 1. Not sure...
3:52
Lesson Planet

#### How Do You Find the Greatest Common Factor of Monomials?

For Teachers 7th - 9th
Use prime factorization to find the greatest common factor of four given values. What are the factors that all four given values have in common? Identify them, and then multiply together to get the greatest common factor. Just like that....
1:58
Lesson Planet

#### How Do You Find the Greatest Common Factor of Three Numbers?

For Teachers 6th - 8th
Use prime factorization to find the greatest common factor of three given values. What are the factors that all three given numbers have in common? Identify them, and then multiply together to get the greatest common factor. Just like...
2:15
Lesson Planet

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

For Teachers 6th - 8th
Here's a quick review on how to use a prime factor tree to find the greatest common factor of two numbers. This is one of the simplest ways to find the greatest common factor. So watch this video to get a refresher on how to do prime...
1:38
Lesson Planet

#### How to Find the LCM and GCF

For Teachers 5th - 8th
Two students have a conversation about the least common multiple (LCM) and greatest common factor (GCF). They briefly describe and give examples of how to find both the LCM and GCF. Note: The dialogue may be difficult to understand,...
Lesson Planet

#### Greatest Common Factor Using Lists

For Students 6th Standards
By creating a list of factors for two numbers, it is easier to see the greatest common factor. Each question in an interactive resource asks pupils to identify the greatest common factor for the numbers 24 and 36 in several different...
Lesson Planet

#### DK: Greatest Common Factor

For Teachers 4th - 8th
Send your learners home with a greatest common factor worksheet that really guides them through the process! Each question indicates space for scholars to show the factors of the number, and a clear example is provided. The questions are...
Lesson Planet

#### Greatest Common Factor

For Students 3rd - 5th
These multiples share a few factors, but which one is the greatest? Scholars list the factors for various number pairs, first just indicating common factors. Next, they do the same but write down the greatest common factor. Finally,...
2:55
Lesson Planet

#### Greatest Common Factors - Concept

For Students 8th - 10th Standards
Introduce your class to the greatest factor on earth. The group of videos introduces factoring polynomials by finding the greatest common factor (GCF). They connect finding the GCF of the terms in a polynomial to finding the GCF of two...
Lesson Planet

#### Greatest Common Factor and Factoring by Grouping

For Teachers 11th - Higher Ed
In this Algebra II/college level worksheet, students factor polynomials by pulling out the GCF and by grouping.  The two page worksheet contains seventy–two problems.  Answers are provided.
Lesson Planet

#### Greatest Common Factor Lesson

For Teachers 5th - 7th Standards
Here is a unique approach: youngsters use a Venn diagram to identify the greatest common factors of two numbers. This would be a good way to review the concept once they have been exposed to this topic. It includes sample problems that...
3:06
Lesson Planet

#### Word Problem - GCF

For Teachers 4th - 5th Standards
Using a word problem, the narrator helps describe how to find the greatest common factor. Not only does she explore the ways to identify the greatest common factor, she also shows how to determine when a math problem is asking for this...
6:03
Lesson Planet

#### How Do You Find GCF and LCM?

For Teachers 4th - 5th Standards
Using the numbers 225 and 270, the narrator explains how to find the greatest common factor and the least common multiple. This presentation could be used in conjunction with other videos in a series exploring how to identify prime...
1 In 1 Collection
EngageNY

#### Least Common Multiple and Greatest Common Factor

For Students 6th Standards
Find the common denominator between prime factors, factor trees, and the distributive property. Scholars learn to find the least common multiple and greatest common factor of pairs of numbers. They rotate through stations to connect...
1 In 1 Collection 7:32
Lesson Planet

#### Greatest Common Factor, Monomials

For Students 9th - 12th Standards
Model how to find the greatest common factor of monomial expressions with a video that works through three examples. The first is a constant, the second a single variable expression, and the third is a multivariable example.
Lesson Planet

#### Greatest Common Factor - OnlineMathLearning.com

For Students 5th - 7th
Use this greatest common factor worksheet to have your charges find the GCF of 3 numbers in each problem that are two and three-digit numbers. They complete 12 problems.
2:24
Lesson Planet

#### How Do You Divide Monomials Using the Greatest Common Factor?

For Teachers 8th - 9th
Factor out the greatest common factor to simplify a rational expression. When the greatest common factor is divided out of the numerator and the denominator what is left is the rational expression in simplest form. Watch as the teacher...
4:19
Lesson Planet

#### How Do You Factor the Greatest Common Factor out of a Polynomial?

For Teachers 7th - 9th
There are four terms in this polynomial. Find the greatest common factor. Remember to prime factor the number values to help find the GFC. Then rewrite the polynomial in simplest form. Not sure about this skill, then watch the instructor...