Prime and Composite Numbers Worksheets

Download the Prime and Composite Numbers Worksheets

Looking for the best way to teach students about Prime and Composite Numbers?

This premium worksheet bundle contains 10 activities to challenge your students and help them understand Prime and Composite Numbers.

Prime and Composite Numbers


A PRIME number is a number which has only two factors. A COMPOSITE number has two or more factors.


PRIME numbers are numbers which only have two factors. PRIME numbers can only be divided by 1 and ITSELF.

COMPOSITE numbers are numbers which have more than two factors. COMPOSITE numbers can be divided by 1, itself, and another number.


2 is a prime number because it can only be divided by 1 and 2.
      2 ÷ 1 = 2
      2 ÷ 2 = 1

4 is a composite number because it can be divided by 1, 2, and 4.
      4 ÷ 1 = 4
      4 ÷ 2 = 2
      4 ÷ 4 = 1

Prime and Composite Numbers Worksheets

This is a fantastic bundle which includes everything you need to know about Prime and Composite Numbers across 15+ in-depth pages. These are ready-to-use Common core aligned Grade 4 Math worksheets.

Each ready to use worksheet collection includes 10 activities and an answer guide. Not teaching common core standards? Don’t worry! All our worksheets are completely editable so can be tailored for your curriculum and target audience.

Resource Examples

Click any of the example images below to view a larger version.

Worksheet Activities Included

  1. Prime birds
  2. Composite tree
  3. All about the playground
  4. Timber wall
  5. On a balloon-ny day
  6. When it rains
  7. Ice cream path
  8. Do-it-yourself ice cream
  9. Flowers in bloom
  10. Factor swing

Why download our worksheets?

Fully editable files

Grades K-8

Common core aligned

Printable math worksheets

Can be tailored for your audience

Answer key included

Powerpoint & PDF Format

Includes topic theory

Fully graded worksheets