GMAT Tip: No time for long division? Try prime factorization for a potential test-day time saver
filed in Daily Buzz News on Jul.31, 2010
Today’s GMAT tip comes from Kaplan. In this article, Kaplan GMAT instructor Bret Ruber offers advice on how to use prime factorization as a time saver: 1,960 = 49 x 16 x y. What is the value of y? When most testtakers encounter problems such as the one above, they have a predictable, yet incorrect, [...]
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