List of types of numbers
Numbers can be classified according to how they are represented or according to the properties that they have. == Main types == Natural numbers ( N {\displaystyle \mathbb {N} } ): The counting numbers {1, 2, 3, ...} are commonly called natural numbers; however, other definitions include 0, so that the non-negative integers {0, 1, 2, 3, ...} are also called natural numbers.