From the course: Preparing for the GMAT

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Integers: Even, odd, and primes

Integers: Even, odd, and primes

From the course: Preparing for the GMAT

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Integers: Even, odd, and primes

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- [Instructor] So some other properties of integers you'll need to know for the GMAT include those associated with even numbers, odd numbers, and the prime numbers. So let's get some definitions going first. What is an even number? Even numbers are divisible by two. So these would include numbers like two, four, or negative numbers like negative two and negative four. And then remember zero is even as well. What about odd numbers? Well those are numbers that are not divisible by two. So examples of odd numbers: one, three, five, and seven. So there are a few properties of even and odd numbers that I want to talk about with you. And these are good things to kind of memorize. If you forget them, you can always test some examples. But it's nice to have them at the tips of your fingers. So an even number plus an even number equals an even number. For example, two plus four is six, which is even. Now an even number plus an odd number is an odd number. For example, four is even, plus seven,…

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