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Prime factorization — free printable Grade 6 math worksheet

Prime factorization

Free printable Grade 6 math worksheet for "Prime factorization" — practice number theory. No-prep, print or assign online.

This worksheet provides challenging exercises on prime factorization designed for Grade 6 students. Teachers can use it to reinforce number theory concepts and improve students' ability to break down composite numbers into their prime factors. The resource supports skill development in recognizing prime numbers, applying factorization techniques, and enhancing problem-solving abilities in mathematics.

Math
Number Sense & Operations
Middle School
Worksheets
Ages 11–14
hard

Learning objectives

  • Identify prime numbers and composite numbers within a given set.
  • Perform prime factorization of whole numbers using factor trees or division methods.
  • Analyze and verify the prime factors to ensure accurate factorization.

How to use this worksheet

  1. Click “Download Worksheet” to get the PDF — free with a KiwiBee account (up to 25 downloads a month).
  2. Print at home or in class for Middle School; it's no-prep, with no extra materials needed.
  3. Hand it out as classwork, homework, or a quick warm-up.

Frequently asked questions

Is the “Prime factorization” worksheet free?

Yes. “Prime factorization” is a free printable Math worksheet. Sign in with a free KiwiBee account to download the PDF — it includes up to 25 downloads a month.

What grade or age is this Math worksheet for?

It's designed for Middle School (ages 11–14), covering Number theory.

Do I need to prep anything?

No. It's a no-prep, print-and-go worksheet — just download and hand it out.

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