# Real Numbers

Real numbers are numbers that can be thought of as points on an infinitely long number line. Real numbers include `-5`

, `π`

, and `√2`

. Nearly any number you can think of is a real number. Real numbers include: whole numbers (`0`

, `1`

, `2`

, `3`

, `4`

, etc), integers (`-2`

, `-1`

, `0`

, `1`

, `2`

, `3`

, `4`

, etc), rational numbers (`3/4`

, `0.125`

, `0.333`

, `1.1`

, etc ), and irrational numbers (`π`

, `√3`

, etc ). Real numbers do not include: imaginary numbers (`√-1`

) and infinity.

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