 Natural number

The natural numbers are the nonnegative integers $0,1,2,\dots$.

Natural numbers are a set of positive integers that are commonly used for counting and ordering. The set of natural numbers typically includes: - The positive integers: 1, 2, 3, 4, 5, ... Some definitions include zero in the set of natural numbers, making it: - 0, 1, 2, 3, 4, 5, ...