Prime or composite
Free printable Grade 6 math worksheet for "Prime or composite" — practice number theory. No-prep, print or assign online.
This worksheet challenges middle school students to distinguish between prime and composite numbers through a variety of problems. Teachers can use it to reinforce number theory concepts and enhance students' critical thinking about factors and divisibility. Ideal for grade 6 classrooms, it supports skill development in identifying prime numbers and understanding their properties.
Learning objectives
- Identify whether a given number is prime or composite.
- Explain the reasoning behind classifying numbers as prime or composite.
- Apply divisibility rules to determine the factors of numbers.
How to use this worksheet
- Click “Download Worksheet” to get the PDF — free with a KiwiBee account (up to 25 downloads a month).
- Print at home or in class for Middle School; it's no-prep, with no extra materials needed.
- Hand it out as classwork, homework, or a quick warm-up.
Frequently asked questions
Is the “Prime or composite” worksheet free?
Yes. “Prime or composite” 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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