Helping with Math
Factors With Prime and Composite Numbers (1 of 2)
Math monsters examine nine numbers, factor them, and then determine if they are composite or prime. You can print this learning exercise off of the website, but it does not fit neatly onto one page. Consider projecting it on your class...
K12 Reader
Prime or Composite?
Prime numbers? Composite numbers? Prime factorization? After reading a short article about factors and prime and composite numbers, kids answer a series of comprehension questions based on the text.
Super Teacher Worksheets
Prime and Composite
Factoring is an essential component in algebra, and this worksheet prepares learners with a quick reference guide and examples. After they find all the factors, they decipher whether the number is prime or composite.
Curated OER
Factor Trees
In this factor trees worksheet, students make factor trees for 2 through 4 digit numbers. Students complete 20 factor trees for these numbers.
Curated OER
Prime Time
Fifth graders complete activities related to prime and composite numbers. In this prime lesson, 5th graders make a hundreds chart with all the prime numbers. They create their own card game which deals with prime and composite numbers.
Curated OER
Primes in Product
In this secondary mathematics activity, students must determine the two prime numbers and one composite number that would be factors of the given product. The one page activity contains one problem with the solution.
Curated OER
Smart Cookie Factors
Learners examine the concept of finding the greatest common factor. They complete number of activities as they practice identifying prime and composite numbers. Pupils apply rules of divisibility and find the greatest common factor while...
Curated OER
Quick Quiz: Prime or Composite?
In this prime/composite quiz activity, learners identify 12 numbers as either prime or composite. Answers are included on page 2.
Curated OER
Worksheet: Prime or Composite
Learners read the definitions for prime and composite numbers. Learners then identify the numbers as prime and composite numbers for the 20 problems. They complete a prime search and answer four problems about numbers.
Curated OER
Prime Numbers and Factors
Students determine factors of numbers to 100 and identify prime factors; students differentiate prime and composite numbers by the factors of the numbers.
Curated OER
Numbers 1.1
In this numbers 1.1 worksheet, learners solve 64 problems about all kinds of numbers: rational, irrational, prime, composite, square roots, fractions, decimals.
Scholastic
Optical Illusion
Number theory gets a workout in an activity that asks individuals to identify and color code the prime numbers and the composite numbers in the provided graphic.
Curated OER
ISTEP + Grade 6 Item Sampler
In this cross-curricular sampler of worksheets, students determine the meaning of specialized vocabulary and to understand the precise meaning of grade-level-appropriate words, describe and connect the essential ideas, arguments, and...
Curated OER
Am I Am I Prime?
Seventh graders determine if a number is prime or composite. In this determining if a number is prime or composite lesson, 7th graders use a website to help find all prime numbers between 1 and 100. Students use a website to find...
Curated OER
Prime and Composite
Sixth graders practice implementing manipulative's to assess composite and prime numbers. They formulate representations of rational numbers in a variety of ways including graph paper, sieves of Eratosthenes and multiple worksheets.
Curated OER
Prime Time
Seventh graders practice determining the prime factorization of composite numbers. They create Christmas factor trees for prime numbers greater than 100. They decorate their final products with markers, crayons, colored pencils, glitter...
Curated OER
Prime Real Estate
Students analyze and discuss prime numbers and the Sieve of Eratosthenes, a procedure to sort out prime numbers. They identify the prime numbers from 1-100 by eliminating all the multiples of the first four prime numbers, and circle what...
Curated OER
Sieve of Eratosthenes
Students discover the Sieve of Erathosthenes. They explore a method to find all the prime numbers in a group of numbers. Using models, students practice divisibility rules while examining the difference between prime and composite numbers.
CK-12 Foundation
Prime and Composite Numbers
Nine true or false, multiple-choice, and discussion questions make up an interactive designed to reinforce scholars' knowledge of prime and composite numbers. A number chart reveals every prime number through 100.
Math Learning Center
Grade 5 Supplement Set A2 – Number and Operations: Primes, Composites and Common Factors
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...
Curated OER
Factoring Numbers
In this factoring worksheet, students read about composite and prime numbers. They then read through 2 example problems regarding factors. Finally, students solve the 6 problems at the bottom of the page.
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...
k12 Math Worksheets
Prime Factorization
Your learners will get plenty of prime factoring practice with this one-page math worksheet.
Curated OER
Prime Numbers
Students differentiate between prime and composite numbers. In this algebra lesson, students define the terminology and investigate the contributions made by Eratosthenes and Euclid as it relates to prime numbers. Students apply the...
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