Homeschool Math
Homeschool Math: Prime Factorization
This site contains a free lesson on Prime Factorization in which students learn by doing practice problems.
PBS
Pbs Learning Media: Patterns of Factors
Demonstrate your grasp of patterns and factors by sorting the numbers into the correct columns. This interactive table focuses on factor pairs and prime factors for the numbers 2 to 36.
Other
Greatest Common Factor Calculator
Free online calculator provides help with finding the greatest common factor.
Other
Visnos: Number Explorer
Explore division, factor pairs, and prime factors in this interactive exercise.
Calculator Soup
Calculator Soup: Factoring Calculator
The factoring calculator finds the factors and factor pairs of a positive or negative number. Enter an integer number to find its factors.
Help Algebra
Help algebra.com: Fractions
This resource offers an overview of fractions from several aspects, including simplifying, reduced, mixed numbers and improper form, and basic operations. Examples and diagrams are included to help demonstrate each topic.
Cuemath
Cuemath: Least Common Multiple
Learn about the properties of Least Common Multiples (LCM) and the three methods to find the LCM. Included are solved examples and interactive problems for review.