**Natural Numbers** are positive whole numbers from 1, 2, 3, ... 10,
11, 12, ... 100, 101, 102, ... 1000, 1001, 1002, ... infinity. There is two important facts that
make natural numbers unique:(1) Zero is not a natural number, and (2) A natural number does not have decimal point or factional part of a number.

Natural numbers had their origins in the words used to count things, beginning with the number 1. A natural number is represented by the digits from 1, 2, 3 through to infinity (forever). In math, there must be an infinite number of natural number digits, since each natural number is defined in part by having a number that follows it. These numbers are also whole numbers, not fractions or decimals, and can be used counting or ordering.