Greatest common factor
Free printable Grade 6 worksheet: Greatest common factor. 8 problems, increasing difficulty with star challenges. Instant PDF with answer key.
This worksheet provides challenging exercises on finding the greatest common factor, designed for Grade 6 students studying number theory. Teachers can use it to reinforce prime factorization skills and enhance problem-solving abilities related to factors and multiples. The resource supports differentiated instruction by offering complex problems that deepen understanding of GCF concepts.
Learning objectives
- Identify the greatest common factor (GCF) of two or more numbers using prime factorization.
- Apply the concept of GCF to solve word problems involving factors and multiples.
- Analyze pairs of numbers to determine their common factors and select the greatest one.
Answer Key
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.
- Use the included answer key to mark it in seconds.
Frequently asked questions
Is the “Greatest common factor” worksheet free?
Yes. “Greatest common factor” 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.
Does it come with an answer key?
Yes — a matching answer key is included so you can grade it in seconds.
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