Worksheet
Curated OER

Greatest Common Factor

For Students 3rd - 5th
These multiples share a few factors, but which one is the greatest? Scholars list the factors for various number pairs, first just indicating common factors. Next, they do the same but write down the greatest common factor. Finally,...
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...
Worksheet
Curated OER

Working With Common Factors and Common Multiples

For Students 5th - 6th
In this math worksheet, learners learn to find common factors and common multiples for sets of numbers. First students circle the common factors they see in the examples given. Then learners list the factors and multiples for each number...
Lesson Plan
Curated OER

Greatest Common Factor and Factoring by Grouping

For Teachers 11th - Higher Ed
In this Algebra II/college level worksheet, students factor polynomials by pulling out the GCF and by grouping.  The two page worksheet contains seventy–two problems.  Answers are provided. 
Lesson Plan
Illustrative Mathematics

Factors and Common Factors

For Teachers 5th - 7th Standards
This is an exercise in finding the greatest common factor of two whole numbers. Use in direct instruction or as part of your guided practice. Make up additional problems for home work. It also can be used as a mini-assessment or test...
Interactive
Curated OER

Greatest Common Factor - OnlineMathLearning.com

For Students 5th - 7th
Use this greatest common factor worksheet to have your charges find the GCF of 3 numbers in each problem that are two and three-digit numbers. They complete 12 problems.
Lesson Plan
Curated OER

Greatest Common Factor and Least Common Multiple Story Problems

For Teachers 4th - 5th
In this story problems worksheet, students determine whether to find either the greatest common factor or the least common multiple in order to solve the problem.
Lesson Plan
Curated OER

Greatest Common Factor Using a Gradual Method

For Teachers 5th - 8th
Learners make a list of factors of two numbers and circle the greatest common factor for both. They complete 20 problems.
Worksheet
Curated OER

Factoring Polynomials: GCF and Factoring by Grouping

For Students 9th - 12th Standards
Work your way through factoring polynomials with a worksheet that starts with the GCF and ends with factoring by grouping. Each page provides an example as well as an answer key for each section. 
Worksheet
Curated OER

Using a Factor Tree to Find the GCF

For Students 4th - 6th
Learners use the example of a factor tree to find the greatest common factor of three numbers in four problems.
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...
Lesson Plan
Curated OER

Greatest Common Factor

For Teachers 10th - 12th
In this greatest common factor worksheet, students find the GCF of given terms. This one-page worksheet contains 16 problems, with answers.
Worksheet
Curated OER

Greatest Common Factor

For Students 5th
In this problem solving worksheet, 5th graders practice solving the greatest common factors for 7 sets of whole numbers. Students write their answers in the boxes provided.
Instructional Video15:22
2
2
Flipped Math

Greatest Common Factor

For Students 9th - 10th Standards
Break it down to solve it. Learners watch a video on how to factor out the greatest common factor for algebraic expressions. They see how to use factoring and the zero product property to solve polynomial equation and practice their...
Worksheet
Curated OER

Greatest Common Factor

For Students 3rd - 6th
Given 10 number pairs, learners find the greatest common factor for each. For several, one of the numbers is the greatest common factor, and for others mathematicians will need to think a little harder. There space for learners to show...
Lesson Plan
Illustrative Mathematics

Bake Sale

For Teachers 5th - 7th Standards
Put math into action with the real-life scenario of a bake sale. The participants at this bake sale are ready to divide their fresh-baked cookies into bags. It is up to your number crunchers to help decide how many cookies should go in...
Worksheet
Curated OER

Number Sense and Numeration: Multiples, Factors and Square Roots

For Students 6th - 8th
A great resource for any math teacher covering multiples, factors or square roots; this worksheet walks young mathematicians through the logic behind factoring and square roots with a systematic set of problems which gradually increase...
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...
Worksheet
Curated OER

Greatest Common Factors

For Students 7th - 8th
In this pre-algebra worksheet, learners solve the 18 questions in order to find the greatest common factor of the two or three given numbers.
Lesson Plan
Curated OER

College Prep Algebra, GCF and Factor By Grouping

For Teachers 8th - 9th
In this algebra worksheet, students factor out common terms from 20 polynomials. On several they will group two pairs of terms and factor to find the common elements.
Worksheet
Math Mammoth

Greatest Common Factor

For Students 4th - 5th
In this math activity, students find the greatest common factor for 5 sets of problems. The 5th set uses a graphic representation to help with comprehending the concept.
Worksheet
Curated OER

Greatest Common Factor

For Students 3rd - 4th
For this finding the greatest common factor quiz worksheet, students observe two numerals in each data set and solve. Students solve 10 problems. 
Worksheet
Curated OER

Factors and Greatest Common Factor

For Students 9th
In this factors instructional activity, 9th graders solve and complete 39 different problems that include determining the greatest common factor to solve. First, they state whether each number is prime or composite. Then, students...
Worksheet
Curated OER

Calculating Common Factors

For Students 6th - 8th
For this calculating common factors worksheet, middle schoolers solve 11 short answer problems. Students simplify fractions in as few steps as possible by finding common factors.

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