Factoring a Number - A few examples of factoring a number are shown. Instructor uses a large pad with a black marker instead of a traditional board. (10:40)

Here is a simple method for finding the Greatest Common Factor (GCF) and the Least Common Multiple (LCM) without doing any calculation. Instead, you draw and you figure out the answers graphically. This simple example demonstrates the concept. (02:41...)[more]

This slideshow (no sound, no narration) is a quick preview/re-teaching slide presentation covering factors and multiples. There are seven slides. An educator can go at his/her own pace if desired.

From pbslearningmedia.org, produced by Thirteen/WNET New York

In this Cyberchase video segment, the CyberSquad is trying to figure out the location of Icky, the guardian of the Electric Eel of Aquari-Yum. The clue to his location lies in eight bubbles filled with pictures and numbers. The kids are told to find ...two numbers whose product is 20. Realizing that the pair of 10 and 2 is not an option, they use seashells to create an array to test out possible factors. (2:35)[more]

This is a music video from Mr. Q-U-E's "2nd Period" DVD. Directed by Jimmy Pascascio. This fun song is about factoring. More songs can be found at www.musicnotesonline.com. (03:06)

El mínimo cómun múltiplo se usa para saber el menor de los múltiplos de varios números y se puede utilizar por ejemplo si necesitas saber cuando coinciden varios coches que salen a distintas horas de un lugar. (4:00)

In math, a factor is a term that is a part of another term when multiplied, so the number one is a factor for all existing numbers. Understand factors as they relate to math with instructions from a seasoned math teacher.

This lesson consists of giving you the necessary "preliminaries" to do fractions. The tutor explains what are factors, divisors, prime and composite numbers, how to do prime factorization, GCFs, LCMs, multiples, and the rules of divisibility. He also... explains how to use your graphing calculator to help you find the GCF, LCM and multiples.[more]

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