## The GMAT/MBA Library

Explore the world's largest collection of GMAT prep and MBA admissions content.

#### GMAT Sample Questions for You to Practice

by Magoosh GMAT on November 28, 2017

Test your GMAT skills with these practice problems.

#### Properties of Integers: Breaking Numbers into Primes

by Economist GMAT Tutor on July 6, 2017

Keep this tool in mind when questions seem to be too difficult to solve in the two minutes you have.

#### Simplifying GMAT Fractions

by Veritas Prep on March 16, 2017

By simplifying many of the Fraction questions become much, much more manageable.

#### Combinations: Consider The Grouping with the Slot Method

by Veritas Prep on May 10, 2016

Consider the slot method—your path to the right answer may be simpler than you think.

#### How to Handle Square Roots in GMAT Properties of Integers Questions

by Economist GMAT Tutor on April 13, 2016

Remembering this rule will help you to solve seemingly very difficult questions quickly.

#### The GMAT Avengers Challenge of the Week: Number Properties

by Sorin Istrate on March 29, 2016

Can you solve this week's Avengers challenge?

#### Land Your Score: Quantitative Reasoning Problems – Part 2

by Kaplan GMAT on January 10, 2016

Learn how to find the number of positive integer factors for a given number.

#### Land Your Score: Quantitative Reasoning Problems – Part 1

by Kaplan GMAT on January 7, 2016

Find out how you can improve your Problem Solving skills.

#### Decoding Number Properties on the GMAT – Part 3

by Manhattan Prep on January 5, 2016

Don't miss Stacey's key takeaways for divisibility and primes on the GMAT.

#### Decoding Number Properties on the GMAT – Part 2

by Manhattan Prep on December 28, 2015

Deep dive into Divisibility and Prime issues on the GMAT.

#### Decoding Divisibility and Prime on the GMAT – Part 1

by Manhattan Prep on December 27, 2015

Don't miss Stacey's key takeaways for divisibility and primes on the GMAT.

#### Tackling Least Common Multiples and Greatest Common Factors

by Economist GMAT Tutor on November 26, 2015

Follow these simple steps to make even questions involving large numbers succumb to your charms.

#### The GCD/LCM Formula

by GMAT Prep Now on September 14, 2015

In the last two articles, we learned how to find the greatest common divisor (GCD) and the least common multiple (LCM). In this video, we [...]