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**1,800 Practice Math Questions**

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Beginner's Guide to the GMAT

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## Video: Prime Factorization

###### August 16, 2011

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Last week, I posted a video introduction to prime numbers. Now for the next step: Prime factorizations.

Watch and learn how to take any number and break it down to its prime factors using an approach called a "factor tree." It's an important building block of many GMAT number properties questions.

Enjoy!

**About the author:** *Jeff Sackmann has written many
GMAT preparation books, including the popular Total GMAT Math,
Total GMAT Verbal, and GMAT 111. He has also created
explanations for problems in The Official Guide, as well as
1,800 practice GMAT math questions.*

Total GMAT Math
The comprehensive guide to the GMAT Quant section. It's "far and away the best study material
available," including over 300 realistic practice questions and more than 500 exercises! |