McGraw Hill
Glencoe: Self Check Quizzes 2 Prime Factorization
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of prime factorization. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the...
Scholastic
Scholastic: Study Jams! Math: Multiplication & Division: Prime Factorization
This site provides great practice on the concept of prime factorization. Students can first learn about the topic by watching a step by step instruction video that also points out areas of concern. Finally, students can practice their...
Quia
Ixl Learning: Prime Factorization
Brush up on your math skills relating to prime factorization then try some practice problems to test your understanding.
Amby Duncan-Carr
Prime Factorization: Amby's Resources
What is prime factorization? This site goes through a step-by step process explaining different ways to find the prime factorization.
Elias Saab
Math Drills: Prime Factorization Quiz
This site is an interactive quiz which provides students with a prime factorization problem. Students input their solution and have the program evaluate it. Hints are available if the student needs them, and explanations are provided...
Homeschool Math
Homeschool Math: Prime Factorization
This site contains a free lesson on Prime Factorization in which students learn by doing practice problems.
Homeschool Math
Homeschool Math: Prime Factorization of Three Digit Numbers
This lesson shows examples of how to get started with the prime factorization of three-digit or larger numbers, using a factor tree. includes numerous practice exercises.
Calculator Soup
Calculator Soup: Prime Factorization Calculator
Use this prime numbers calculator to find all prime factors of a given integer number up to 1 trillion. This calculator presents prime factors of a number, prime decomposition in exponential form, CSV (comma separated values) list of...
University of Waterloo (Canada)
Wired Math: Primes and Prime Factors [Pdf]
Explore primes, prime factors, and composites using this collection of worksheets. Lots of detailed examples, interesting math facts, and colorful visuals. Acrobat Reader required.
Cool Math
Coolmath: Pre Algebra Factorizations
Learn about "factorization" from Cool Math. Several examples and practice problems are provided.
National Council of Teachers of Mathematics
The Math Forum: Finding the Greatest Common Factor of Two Numbers
Math Forum response to question about finding the greatest common factor by using the factoring tree method.