by Apex Marketing | Nov 29, 2022 | GMAT, Number Theory, Quant

Welcome back to our series on number properties. In the last article, we learned about place-value problems. This article will cover the related topic of switching digits in two-digit integers. Here are some examples of what that means: 75 <-> 57 39 <-> 93...
by Apex Marketing | Nov 1, 2022 | GMAT, Number Theory, Quant

Welcome back to our series on number properties. Last time we got familiar with prime factors as the substance of divisibility. In this article, we will extend this understanding by highlighting logical rules that sometimes come into play on GMAT number properties...
by Apex Marketing | Oct 19, 2022 | GMAT, Number Theory, Quant

Welcome back to our series on number properties. In the last article, we explored the factors of perfect squares. This article will examine a special property of consecutive perfect squares. A commonly tested skill on the GMAT is the ability to recognize and...
by Apex Marketing | Oct 6, 2022 | EA, GMAT, Quant

Understanding Exponents A key piece of algebraic notation on GMAT and Executive Assessment (EA) quant problems is the exponent. Exponents appear on many kinds of quantitative problems, so fluency with exponents (and radicals) is an indispensable skill for achieving a...
by Apex Marketing | Oct 4, 2022 | EA, GMAT, Quant

Welcome to the final article in our series on exponents. Some GMAT and Executive Assessment (EA) quant problems feature impossibly large numbers like 287459. These are problems that you simply can’t hope to solve without a key piece of knowledge that we call units...