What are integers?

An integer is a whole number (not a fractional number) that can be positive, negative, or zero.
Examples of integers are: -5, 1, 5, 8, 97, and 3,043.
Examples of numbers that are not integers are: -1.43, 1 3/4, 3.14, .09, and 5,643.1.

all positive and negative whole no i.e (1....infinity ),(-1 to infinity ) including 0 are integers