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Lesson Plan
Curated OER

Factor Trees

For Teachers 4th - 7th
In this factor trees worksheet, students make factor trees for 2 through 4 digit numbers. Students complete 20 factor trees for these numbers.
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Worksheet
Curated OER

Using Factor Trees

For Students 5th - 6th
For this math worksheet, students read about how to create a factor tree. Students use factor trees to determine the prime factors of 16 numbers.
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Lesson Plan
EngageNY

Least Common Multiple and Greatest Common Factor

For Students 6th Standards
Find the common denominator between prime factors, factor trees, and the distributive property. Scholars learn to find the least common multiple and greatest common factor of pairs of numbers. They rotate through stations to connect...
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Worksheet
Curated OER

Unit 2 Section 2: Prime Factors

For Students 7th - 8th
In this prime factors worksheet, students make six factor trees. They tell the prime factorization for eight numbers. Students answer three questions regarding the prime factorization of numbers.
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Worksheet
Curated OER

Chapter 2 Review: Prime Factorization

For Students 6th - 8th
In this prime factorization worksheet, learners find the prime factorization of numbers by using a factor tree. They compare fractions and identify equivalent fractions, and find the greatest common factor, order numbers, and convert...
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Worksheet
Curated OER

Primes and Prime Factors

For Students 8th
In this primes and prime factors activity, 8th graders solve 21 different problems to include identifying each number as prime, composite, or neither prime nor composite and listing all the primes less than 200. Then they complete each...
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Worksheet
Curated OER

Prime Factorization - Practice 7-2

For Students 3rd - 5th
Finding the prime factors of two numbers is the focus of this math learning exercise. Students write the factors to complete 2 factor trees, write the prime factorization for 9 numbers and answer 2 word problems.
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Assessment
Mathed Up!

HCF, LCM, and Product of Primes

For Students 6th - 8th Standards
Give the class a prime example of using prime numbers. After reviewing prime factorization of numbers with the video, pupils use their knowledge to determine greatest common factors and least common multiples in the worksheet. The...
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Worksheet
Curated OER

Prime Factorization Worksheet

For Students 4th - 6th
Here's a prime factorization practice worksheet in which learners sharpen their problem solving skills as they solve six story problems.
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Activity
Math Learning Center

Grade 5 Supplement Set A2 – Number and Operations: Primes, Composites and Common Factors

For Teachers 5th Standards
Incorporate riddles into your math lesson by having students make tree factors and determine if the number is a prime or composite. They will also use other clues to find the answer to the riddle while sharpening their multiplication...
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Worksheet
Curated OER

Exponents and Prime Factorization

For Students 6th - 7th
In this exponents and prime factorization practice worksheet, learners sharpen their problem solving skills as they solve six story problems.
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Worksheet
Helping with Math

Prime Factorization with Factor Trees (2 of 2)

For Students 3rd - 5th Standards
The publisher has tagged this resource as designed to meet CCSS.Math,Content.6.NS.4, but it really is only the first step in the process of determining least common multiples and greatest common factors. Six numbers are given for...
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Worksheet
Curated OER

Prime factors

For Students 6th
In this prime factors learning exercise, 6th graders find the prime factors of two digit numbers. Students complete 6 problems where they find prime factors.
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Worksheet
Curated OER

Make a Factor Tree

For Students 5th - 6th
In this factoring worksheet, students solve 9 problems in which a two or three digit number is factored using a factor tree. Each number is in its own box. There are no examples.
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Worksheet
k12 Math Worksheets

Prime Factorization

For Students 6th - 8th
Your learners will get plenty of prime factoring practice with this one-page math worksheet. 
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Worksheet
Curated OER

Factors and Factorization

For Students 6th - 8th
In this factors activity, students list all factors of given numbers.  All numbers are positive and contain two to three digits.  This four-page activity contains 28 problems.  Answers are provided.
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Worksheet
Curated OER

Factor Trees and GCF

For Students 6th - 8th
In this prime factorization and greatest common factor worksheet, students use factor trees to find the prime factorization of 8 numbers. They find the GCF of six pairs of numbers.
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Worksheet
Curated OER

Prime Factorization

For Students 5th - 8th
In this prime factorization worksheet, students complete factor trees for 2 digit numbers to find their prime factorization. Students complete 6 problems.
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Lesson Plan
Curated OER

Prime Factorization

For Teachers 5th - 6th
In these prime factorization worksheets, young scholars make a factor tree of the given numbers and then write the answers using exponential notation. Students then use multiplication to check their factoring work. Young scholars...
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Worksheet
Math Mammoth

Factoring and Primes 2

For Students 4th - 5th
In this factoring learning exercise, students read about prime factorization, factor using factor trees, build numbers from primes and complete a challenge puzzle.
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Worksheet
Curated OER

Finding Prime Factors

For Students 6th
In this finding prime factors worksheet, 6th graders read two strategies for finding prime factors, then practice using these methods by doing factor facts drills.
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Lesson Plan
Curated OER

Mission: Finding the LCM using Prime Factorization

For Teachers 5th - 6th
For this prime factorization worksheet, students find the least common multiple of the given pair of numbers using factor trees. Students solve 10 problems.
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Worksheet
Curated OER

Greatest Common Factor: Reteach

For Students 5th - 6th
In this greatest common factor learning exercise, students review the different ways to find the greatest common factor for numbers including listing all the factors and finding prime factorization with factor trees. Students then list...
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Worksheet
Curated OER

Prime Factorization with Factor Trees (1 of 2)

For Students 4th - 6th Standards
Six numbers (12, 32, 50,48,36, and 75) are given to learners to craft factor trees with. The first one is completed as an example in this first of two similar online worksheets. Note that where factorization is an foundational step in...