1,007 GRE Practice Questions by Princeton Review

Author:Princeton Review [Princeton Review, The]
Language: eng
Format: epub
ISBN: 978-0-307-94632-4
Publisher: Random House Children's Books
Published: 2013-07-22T16:00:00+00:00

If you have these rules memorized, you won’t have to try out examples to figure out the problem; you will have the answer in a matter of moments with nary a need to calculate. This is powerful.

Divisibility is another area where you can use shortcuts. You will rarely need to know exactly how many times one number can be divided by another. Often, all you need to know is whether one number can be divided by another.

Rules of Divisibility

Occasionally you will see questions that seem to relate to rules of divisibility but that involve numbers too big to calculate. For example, try this question.

Which of the following numbers will divide evenly into 1211: 24, 36, 211, 222, 311, 312, 40, or 482 ?

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