Graduate Management Admission Test (GMAT) Practice Test

How is 0 categorized in the context of integers?

1. Neither odd nor even

2. Only as even

3. Only as odd

4. Only positive

The correct answer is: Only as even

In the context of integers, zero is categorized as an even integer. An even integer is defined as any integer that is divisible by 2, and since dividing zero by 2 results in zero, it fits this definition perfectly. This unique characteristic of zero allows it to be included in the set of even numbers. It does not fall under the category of odd numbers, which are integers that cannot be evenly divided by 2, leaving no remainder. Additionally, zero is neither positive nor negative; it serves as the neutral point on the number line that separates these two categories. Understanding zero's classification as an even integer is crucial as it plays an important role in mathematics and is often a point of confusion for those learning about number types.