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4th Grade Prime and Composite Numbers Resources

Have your fourth graders work through multiplication problems by learning about factors and why they are important for problem solving.

Find the Factors of Prime and Composite Numbers

Students practice identifying prime numbers, regular polygons, and irregular polygons!

It's a Maze of Hexagons!

These math exercises will help your child practice finding coordinates, solving integer problems and factoring numbers to boost his or her algebra skills.

Algebra Adventures

From multi-digit subtraction to identifying prime numbers, assess each student&rsquo;s mastery of a variety of fourth-grade math skills.

Math Mixed Review Part 1: Flying Through Fourth Grade

With this worksheet, your child will be learning about factors, and they'll be getting multiplication practice as they go.

Finding Factors

Students practice solving a variety of equations, then determine if the answer is a prime number.

Which Numbers Are Prime?

What is a prime number? A number is prime when it is only divisible by 1 and itself. Help your little mathematician recognize prime numbers.

Finding Prime Numbers

Understanding how our ten number system works enables students to see interesting and useful patterns and relationships in these math activities. These patterns allow students to develop more efficient mental math strategies when multiplying by multiples of 10 or 100. Students will also review rounding and apply this skill to larger numbers - up to 100,000’s place.

Number Sense 3

Does your child know the difference between a prime number and a composite number? Help them learn the difference with this simple worksheet.

Prime Numbers vs Composite Numbers

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

Fill in the Factor Tree

Give your child prime number practice with this simple worksheet.

Prime Number Practice

Give students practice identifying prime numbers with this fun this maze activity!

Identifying Prime Numbers Maze

Use these vocabulary cards with the EL Support Lesson: Conversations About Prime and Composite Numbers.

Vocabulary Cards: Conversations About Prime and Composite Numbers

This multi-part worksheet helps students practice identifying the differences between regular and irregular hexagons while also reviewing their knowledge of composite and prime numbers.

More Amaz-ing Hexagons!

Learning to identify prime numbers can be tricky. But this fun card game can make memorizing some basic prime numbers a breeze.

In Your Prime

Grow your fourth grader's number sense skills with this fishing-themed math game! 

Dino Fishing: Composite Numbers

Learners differentiate between prime and composite numbers while unearthing dinosaur bones.

Dino Bones: Prime Numbers

Practice identifying factors with this beach-themed worksheet for fourth graders!

Prime, Composite, and Factoring Fun

Learners practice determining factors of prime and composite numbers with this fourth-grade math worksheet!

Factors of Prime and Composite Numbers #1

Get more practice determining factors of prime and composite numbers with this helpful math worksheet!

Factors of Prime and Composite Numbers #2

Take a deep dive into prime and composite numbers to 20 with this exploratory worksheet!

Prime and Composite Numbers to 20

Become the prime expert of prime numbers with this engaging maze!

Prime Number Maze

Learn to identify prime and composite numbers in this guided worksheet!

Prime and Composite Numbers to 100

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

Rainbow Factors #1

Practice with prime and composite numbers in this colorful fourth-grade worksheet!

Rainbow Factors #2

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