Prime and Composite Numbers Activities NO PREP Worksheets

Rated 4.83 out of 5, based on 834 reviews
834 Ratings
Shelly Rees
Grade Levels
4th - 6th, Homeschool
Formats Included
  • PDF
11 pages
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Shelly Rees

What educators are saying

LOVED this resource. Had my students use this independently and was able to pull small groups based on performance. Was engaging for them! Highly recommend!
I never have enough practice with this skill. The kids really need continued practice with identifying factors of numbers so this was great.


Prime and composite numbers are fun and easy to master with this convenient NO PREP packet! Includes prime number coloring and factorization practice. Simply print, copy, and go! Your students will LOVE the variety!

Click the PREVIEW button above to see everything included.

This fun Prime and Composite Numbers printable packet includes:

  • What is a Prime Number? definitions and explanations
  • Cross It Out! 100 number grid activity
  • Factor It and Label It! List the factors and label numbers as prime or composite
  • Prime Puzzle Prime/Composite number coloring puzzle
  • What Number Am I? Use the process of elimination and number sense to solve number riddles.
  • Prime Number Path Identify prime and composite numbers and color a path.
  • Answer Keys

This packet can be easily used in a variety of ways: test prep and review, sub plans, math centers, morning work, independent classwork, homework, small groups, and intervention time.

For more practice with prime numbers, take a look at

Prime and Composite Numbers Math Mastery Worksheets.

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Shelly Rees

Total Pages
11 pages
Answer Key
Teaching Duration
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to see state-specific standards (only available in the US).
Find all factor pairs for a whole number in the range 1-100. Recognize that a whole number is a multiple of each of its factors. Determine whether a given whole number in the range 1-100 is a multiple of a given one-digit number. Determine whether a given whole number in the range 1-100 is prime or composite.


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