## Math Refresh

We have been using numbers in everyday life. Everything from 0 to 22/7 might sound the same to most, but numbers differ from one another. Based on their characteristics, they are classified in groups. Based on all the different types of numbers Mathematicianâ€™s have named, we have built the ultimate guide to Number classification.

The associated chart shows how the number groups are related to each other. Read below for more details on each number group.

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As a part of any math exam like GMAT, GRE or CAT, if you are trying to find out whether that number is evenly divisible without actually dividing it, then use these tests of divisibility. Learn these tests and save yourself precious time.

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