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Welcome to our Factor Tree Worksheets page. Here you will find our selection of worksheets involving using factor trees for factorize numbers. We have a range of sheets at different levels of difficulty. Factor Tree WorksheetsOn this page we have worksheets using factor trees to factorize a range of numbers. We also have a link to our Prime Factorization Calculator which will quickly and easily show you all the prime factors of any number. Using these factor tree worksheets will help your child to:
These sheets are aimed at students from 6th grade and upwards. What is a factor tree?A factor tree is a visual way of factorizing a number and showing you all the prime factors that multiply together to make the number. Factor trees have several rules:
What does a factor tree look like?Let's have a look at a couple of examples. Example 1) Complete the factor tree below and write down the prime factorization of 12.
We know that 12 = 2 x 6 and 12 = 3 x 4 (we cannot use 1 in a factor tree!) We can use either of these equations - it does not matter which one. Let's use 12 = 2 x 6. So the prime factor is 2 and the composite factor is 6. This gives us:
Now we only have the 6 left to factorize. We know that 6 = 1 x 6 and 6 = 2 x 3. We cannot use 1 in a factor tree, so that leaves us with 6 = 2 x 3. This gives us:
The prime factors of 12 are 2, 2, and 3. This means that 12 = 2 x 2 x 3 (or 22 x 3) as a product of prime factors (prime factorization. Example 2) Let us go back to Example 1) and factorize it in a different way. This time we will factorize 12 as 3 x 4 instead of 2 x 6. This gives us:
Now we only have the 4 left to factorize. We know that 4 = 1 x 4 and 4 = 2 x 2. We cannot use 1 in a factor tree, so that leaves us with 4 = 2 x 2. This gives us:
The prime factors of 12 are still 2, 2, and 3. So we still end up with 12 = 2 x 2 x 3 (or 22 x 3) as a product of prime factors (prime factorization. So we still have the same answer as Example 1) but the factor trees have some different numbers in. The Factor Tree in Example 1) has a 6, and the Factor Tree in Example 2) has a 4. This does not matter - the important thing is that the numbers in the circles (the prime factors) are the same in both examples. Factor Tree Walkthrough VideoThis short video walkthrough shows our Factor Tree Worksheet 1 being solved and has been produced by the West Explains Best math channel. If you would like some support in solving the problems on these sheets, check out the video!
Factor Tree WorksheetsAll the worksheets have answers provided. However, as in the example above, the answers are not unique - you can have several different factor trees for numbers. The important thing is that the prime factorization of each number has to match the answer provided. The sheets are graded with the easiest sheets first.
More Recommended Math WorksheetsTake a look at some more of our worksheets similar to these. What is prime factorization?To find out more about prime factorization, including how it works and to look at some worked examples, take a look at our prime factorization support page. Prime Factorization WorksheetsAs well as factor tree worksheets, we also have a collection of prime factorization worksheets. These worksheets are harder than the sheets on this page, and require an understanding of prime factorization. We have prime factorization challenges and also prime factorization riddles here too. Prime Factorization CalculatorOur prime factorization calculator will help you factor any number into a product of its prime factors. It will show the answer in exponential form as well as standard form. You can use this calculator to check that your prime factors in your factor trees are correct. Divisibility Rules 1-10 ChartWe have a range of charts which can help you determine whether a number between 1 and 10 is a factor of a number. Greatest Common Factor WorksheetsAs well as our calculator, we also have a range of greatest common factor worksheets. These sheets have been designed for 6th and 7th grade students. They will help students learn and practice finding the greatest common factor of numbers up to 100. Least Common Multiple WorksheetsWe have a range of worksheets on how to find the least common multiple of two or three numbers. The sheets vary in difficulty, and are suitable for 6th grade and up. 5th and 6th Grade Fractions WorksheetsHere you will find a range of more complex Fraction Worksheets for 5th and 6th graders. At 5th Grade level, children are introduced to adding and subtracting fractions with different denominators. They know and can use equivalent fractions, and can multiply a fraction by whole numbers, as well as adding mixed numbers. Using these sheets will help your child to:
6th Grade Mental Math QuizzesHere you will find a range of printable mental math 6th grade quizzes for your child to enjoy. Each worksheet tests the children on a range of math topics from number facts and mental arithmetic to geometry, fraction and measures questions. A great way to revise topics, or use as a weekly math quiz! How to Print or Save these sheets
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