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Published on Nov 22, 2008
In math, five factorial means that five is going to be multiplied by each positive integer below five. Discover how five factorial is a synonym for 120 with help from a math author and teacher in this free video on math lessons.
Expert: Brian Leaf Contact: www.brianleaf.com Bio: Brian Leaf, MA, is the author of McGraw-Hill's Top 50 Skills for SAT/ACT Success series and has instructed SAT, ACT, GED and SSAT preparation to thousands of students. Filmmaker: David Pakman