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Showing Results for greatest common factor

Grow students&rsquo; math skills with more practice finding the greatest common factor by using factor trees to find the prime factorization.

Find the Greatest Common Factor By Prime Factorization #2

Find the greatest common factor (GCF) using the&nbsp;prime factorization method with this sixth-grade practice worksheet!

Find the Greatest Common Factor By Prime Factorization #3

Use this number theory worksheet to practice finding the greatest common factor of two numbers by finding the prime factorization!&nbsp;

Find the Greatest Common Factor By Prime Factorization #1

When fractions have big numerators and denominators, it can be tough to find the simplest form. Fear not! Use this lesson plan to teach your students to find the simplest form using the greatest common factor. 

Fraction Simplest Form by Greatest Common Factor

Fractions and Greatest Common Factors will help students practice this key fifth grade skill. Try our free exercises to build knowledge and confidence.

Fractions and Greatest Common Factors

Children practice identifying factors with the help of a factor tree in this multiplication worksheet.

Factor Tree

Introduce your child to factor trees with this simple algebra worksheet.

Fill in the Factor Tree

Children determine which fraction is greatest, and which is least, in a row of fractions with unlike denominators.

Comparing Fractions: Least and Greatest

Students will match a product to its factor tree and list of prime factors in this interactive activity.

Matching Factor Tree Cards

Use this glossary with the EL Support Lesson: Factor Friend or Foe?

Glossary: Factor Friend or Foe?

Use this glossary with the EL Support Lesson: The Factor Tree Strategy.

Glossary: The Factor Tree Strategy

Let's talk factors and products! Teach your students the factor tree strategy for finding all factors of a product. This lesson can be taught on its own or used as support to the lesson Divisibility Rules.

The Factor Tree Strategy

Use these vocabulary cards with the EL Support Lesson: Factor Friend or Foe?

Vocabulary Cards: Factor Friend or Foe?

Use these vocabulary cards with the EL Support Lesson: The Factor Tree Strategy.

Vocabulary Cards: The Factor Tree Strategy

Which number doesn't belong? This lesson requires students to think critically as they determine which number is not a factor of a particular number. Teach it on its own or as support for the lesson Factors Over the Rainbow. 

Factor Friend or Foe?

Players race to determine which answer choice is not a factor of the given number.

Dino Skateboarding: Which Factor Does Not Belong?

Give students the ability to scale shapes to a whole number factor with a little hands-on learning through this exercise.

Scaling Shapes to a Whole Number Factor

With the basics established, students will enjoy making use of the knowledge of common prefixes shared in this exercise.


Common Prefixes 2 

Use this glossary with the EL Support Lesson: Common Theme Words.

Glossary: Common Theme Words

Think about the importance of determining the factors of a product.

Factor or Not?

It will be much easier for students to learn how to spell after completing this exercise that gives them familiarity with common suffixes.


Common Suffixes 2

Make math colorful! Teach your students to find the factors of a number using the factor rainbow strategy. 

Factors Over the Rainbow

What treasure will you find at the end of these rainbows? Factor pairs, of course!

Rainbow Factors #1

Use these vocabulary cards with the EL Support Lesson: Common Theme Words.

Vocabulary Cards: Common Theme Words

Use this glossary with the EL Support Lesson: Compare Common Denominators Methods.

Glossary: Compare Common Denominators Methods

Challenge your students to compare two methods for finding the least common multiple between two fractions. Use this lesson on its own or as support for the lesson Make It Work! Adding Fractions with Unlike Denominators.

Compare Common Denominators Methods

List factor pairs with this bright fourth-grade math worksheet!

Rainbow Factors #3

Find factor pairs of two-digit numbers with this fourth-grade math worksheet!

Find the Factors

Use these cards to help students compare two strategies that involve finding common denominators.

Two Methods for Finding Common Denominators

Students continue to hone their understanding of how to find the least common multiple in this math practice worksheet!&nbsp;

Least Common Multiple: Part 2

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