Khan Academy: Arithmetic and Pre Algebra: Common Divisibility Examples

Equipped with several examples from the attached module and from standardized tests, Sal takes viewers through the process of prime factorization and divisibility. He demonstrates each skill several times with many different numbers,...

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This video showing more examples of long division problems involving single-digit divisors with remainders. Practice problems are available. [10:07]

How will learning about the divisibility rules help you do better in math? Well, if you have multi-digit numbers to factor, these rules will definitely help you factor numbers more quickly.

This video explains how to find the least common multiple of algebraic expressions. Practice problems are available. [4:40]

Find a quick, concise explanation of how to use the rules for divisibility by the numbers 2 through 10. Examples are given and clearly explained for each of the divisibility rules.