# Whole number

The term **whole number** does not have a consistent definition. Various authors use it in one of the following senses (in order of most to least common usage):

- the nonnegative integers (0, 1, 2, 3, ...)
- the positive integers (1, 2, 3, ...) (often called natural numbers)
- all integers (..., -3, -2, -1, 0, 1, 2, 3, ...).