easy · GMAT Quant

Which of the following best describes this number?

1. It is an integer because it is a real number located on the number line.
2. It is a rational number because it can be expressed as the ratio of two integers.
3. It is a natural number, since it represents one single positive counting quantity.
4. It is an imaginary number because it is not a finite, neatly terminating decimal value.
5. It is irrational because the decimal expansion of this value never terminates at all.

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