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Archive | Factors

Breakdown of GMAT Quant Concepts by Frequency

Magoosh’s very own Mike McGarry, GMAT/Math Teacher/Tutor/Foosball player extraordinaire, went through 5 different sets of Official GMAT Practice Material and tallied questions based on the subject material they tested to find the most common GMAT questions. Here are the samples of Official Material he used to figure out the GMAT Quant breakdown: 1.GMAT Official Guide […]

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GMAT Divisibility Rules and Shortcuts

Improve your Mental Math Fact: On the GMAT, you do not get a calculator. Actually, on the new IR questions coming this summer, there will be an onscreen calculator, but for the ordinary Quantitative questions, for the foreseeable future, you will be doing those without a calculator of any sort. Consider the following question: S […]

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GMAT Math: Factors

“How many odd factors does 210 have?” “If n is the smallest integer such that 432 times n is the square of an integer, what is the value of y?” “How many prime numbers are factors of 33150?” If questions like these make you cringe, I’d like to convince you that only a few easy-to-understand […]

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