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Prime Factorizations
In this prime numbers worksheet, students answer multiple choice questions about prime numbers and how they are read. Students answer 10 questions total.
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Leveled Problem Solving: Prime Factorization
In this prime factorization instructional activity, students solve a set of 6 problems related to prime factorization, including determining whether numbers are prime or composite and determining factors.
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Number Theory Worksheet 2: The Sieve of Eratosthenes
in this number theory worksheet, students use the Sieve of Eratosthenes to find all primes up to the number 100. Students follow the directions to circle primes and multiples on the hundred chart.
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Number Theory Worksheet 2: The Sieve of Eratosthenes
In this primes and multiples instructional activity, students follow the directions to circle primes and multiples on a hundred chart until all prime numbers from 1 to 100 are circled. This is called the Sieve of Eratosthenes.
Willow Tree
Factoring
Build an understanding of factors and use it to write the prime factorization of numbers. After exploring key vocabulary, learners create prime factorization for given numbers. They then use the prime factorizations to determine the...
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Factors and Prime Factorization
For this factors and prime factorization worksheet, 6th graders use examples to find all the factors for six numbers, then write six more numbers as products of prime factorization.
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Prime factors
In this prime factors worksheet, 6th graders find the prime factors of two digit numbers. Students complete 6 problems where they find prime factors.
Helping with Math
Factors with Prime and Composite Numbers (2 of 2)
Ten two-digit numbers are listed for fourth graders to factor. Once they have factored each, they circle whether the original number is prime or composite. If you click on the "Print Worksheet" button, the printable spreads the problems...
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Number System
In this number system worksheet, students complete several questions writing number sets for natural numbers, odd numbers, and prime numbers.
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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.
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Practice in Prime Factorization
In this practice in prime factorization instructional activity, students solve 8 columns of 10 problems each about prime factors for two and three digit numbers, plus two review problems in each column.
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Number System
In this sets of numbers activity, students write sets of natural numbers, prime numbers odd numbers, and circle prime numbers. Students complete 4 problems.
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Prime Factorization, Equivalent Fractions and GCF review
In this sample test instructional activity, students solve twenty-five problems covering prime factorization, equivalent fractions, greatest common factor, and plotting on a number line. Solutions are provided.
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Prime or Composite numbers
In this prime and composite numbers worksheet, students mark each 2 or 3 digit number as either prime or composite. Students complete 60 problems.
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My Test Book: Multiples and Prime Factorization
In this math skills learning exercise, learners solve 10 multiple choice math problems regarding prime factorization and multiples. Students may view the correct answers.
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My Test Book: Factors and Prime Numbers
In this online interactive math skills activity, students solve 10 multiple choice math problems regarding factors and prime numbers. Students may submit their answers to be scored.
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Number theory and fractions word search
In this number theory and fractions worksheet, learners search for words representing number theory and fractions in a word search. Students search for 15 words.
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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.
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Counting From 1 to 20
Children are given a mixed up number chart 1-20, and are asked to sort out all the even, odd, prime, and composite numbers. This worksheet is intended for 2nd grade but may not be suitable for learners under 10 or those who have not yet...
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Primes and Triples
In this primes worksheet, learners list three triples that are generated by formulas. They explain how to generate these formulas and discuss the Pythagorean Triples. This one-page worksheet contains one multi-step problem.
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Factors
In this factors worksheet, students solve 10 problems in which a one or two digit number is analyzed and all the factors are listed. No examples are provided.
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Factors
Factoring numbers helps prepare scholars for fractions and algebra, so build confidence by drilling this skill and promoting reflection in the process. Scholars start by listing factors for 18 numbers, none of which exceed 30. Next, they...
Illustrative Mathematics
Identifying Rational Numbers
Eight different numbers are listed for mathematics masters to analyze. They simply tell if each number is rational or irrational. They can also explain their reasoning. A simple and straightforward worksheet that is a handy tool for...
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Factors and Greatest Common Factor
In this factors and greatest common factor worksheet, 9th graders solve and complete 14 different problems. First, they state whether each number is prime or composite. Then, students find the prime factorization. In addition, they...
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