Mathed Up!
HCF, LCM, and Product of Primes
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...
EngageNY
Least Common Multiple and Greatest Common Factor
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...
Curated OER
Least Common Multiple
Give students detailed instructions on how to find the Least Common Multiple as well as practice with this thorough introductory worksheet. Instructions for this worksheet include an explanation of both guess and check as well as prime...
Scholastic
Study Jams! Least Common Multiple
RJ instructs your sixth graders in two different methods of determining least common multiples. The first is by listing several multiples of each number, and the second is by drawing factor trees. This is an ideal flipped classroom...
Curated OER
Greatest Common Factor and Least Common Multiple Story Problems
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.
Online Math Learning
Word Problems That Use GFC or LCM
This is a webpage that contains five word problems requiring learners to find the least common multiple or least common denominator.
Curated OER
LCM: Factor Trees, Numbers Up to 10
Fourth and fifth graders complete factor trees to find the lowest common multiple out of the two numbers given up to the number 10. Students complete four problems.
Illustrative Mathematics
Bake Sale
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...
Curated OER
Exploring Number Patterns to Discover Common Factors
Students listen and watch a video to see a drummer beat and find a pattern, while learning about the least common factor. In this activity, the concept of least common factors is being taught through the use of musical instruments, and...
Curated OER
Number Sense and Numeration: Multiples, Factors and Square Roots
A great resource for any math teacher covering multiples, factors or square roots; this learning exercise walks young mathematicians through the logic behind factoring and square roots with a systematic set of problems which gradually...
Curated OER
Least Common Multiples
In this math instructional activity, students find the least common multiple of sets of numbers. Students factor each number to their prime factorization. They use the primes to find the least common multiples. This is a instructional...
Curated OER
Factors and Fractions
Find the greatest common factor of numbers. Learners review prime and composite numbers and how to find the prime factorization of a number. They also review the greatest common factor, least common multiple, and learn new ways to find...
Curated OER
Factors and Multiples
Middle schoolers use the factor box process for identifying the greatest common factor and the least common multiple for 10 pairs of numbers. This single-page learning exercise is simple, and makes a useful assignment for practicing...
Texas Instruments
Greatest Common Divisor and Least Common Multiple
Students solve problems using the GCD and LCM. In this algebra instructional activity, students factor and simplify equations using the greatest common and least common factors and multiples. They factor integers in pairs.
Curated OER
Mission: Finding the LCM using Prime Factorization
In this prime factorization worksheet, students find the least common multiple of the given pair of numbers using factor trees. Students solve 10 problems.
Curated OER
Primes and Prime Factors
In this primes and prime factors instructional 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...
Curated OER
Factor Fun for Fifth Graders
Fifth graders explore common factors. In this factorization lesson plan, 5th graders discover the greatest common factor among two numbers in a game format. Students build on previous knowledge to determine the greatest common factor.
Curated OER
Factors
In this factors worksheet, students identify factors of given numbers. They identify prime numbers and name the least common multiple. This two-page worksheet contains 24 problems. This worksheet is designed to be completed mentally.
Curated OER
Least Common Multiple
In this least common multiples learning exercise, 8th graders solve 20 different problems that include determining the least common multiple for each set of numbers. They first list the prime factors of each number given in the...
Curated OER
Least Common Multiple Practice 3
In this least common multiples practice instructional activity, learners examine sample problems and solve 20 problems that require them to find least common multiples.
Curated OER
Common Factors
In this common factors worksheet, 6th graders solve 20 different problems that include various types of common factors. First, they determine the greatest common factor for each pair of numbers listed. Then, students determine the least...
Curated OER
Relating GCF and LCM for Grade Six
In this relating GCF and LCM for Grade Six worksheet, 6th graders answer ten multiple choice questions about factors and multiples, with answers available onscreen.
Curated OER
Least Common Multiple: Post Test
In this least common multiple activity, students answer multiple choice questions about the least common multiple of numbers and rules on how to find it. Students complete 10 questions total.
Curated OER
Least Common Multiple
For this least common multiple worksheet, students write numbers as a product of primes to determine the least common multiple. Explanations and examples are provided. This two-page worksheet contains ten problems.
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