## Irrational Numbers

Any number that is not rational is called irrational. Here are a few examples of some irrational numbers:

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Every *rational* number can be written as a repeating decimal, such as is a rational number where as , above, is not repeating. This is a quick and easy test with a calculator if you are confused as to whether or not a number is irrational.

**Between any two real numbers there is a rational number and an irrational number**.