Natural numbers define natural numbers as numbers used to measure the number of things or to indicate the order of things. Natural numbers start from 0, one by one, forming an infinite group. There are addition and multiplication operations in the set of natural numbers, and the result of adding or multiplying two natural numbers is still a natural number; You can also do subtraction or division, but the result of subtraction and division is not necessarily a natural number, so subtraction and division operations may not be established in the set of natural numbers.
Natural numbers include both non-negative integers and positive integers, and now include "0". Natural numbers usually refer to non-negative integers. A natural number is a number used to measure the number of things or to indicate the order of things. It is a number expressed by the numbers 0, 1, 2, 3, 4 ... Our commonly used counting units are: one, ten, one hundred, one thousand, ten thousand, one hundred thousand and so on.
The difference between natural numbers and positive integers Natural numbers start from 0, excluding negative numbers and decimals (negative decimals).
Positive integers do not include 0 and decimal (negative decimal).
Natural numbers are integers (including positive integers and zero), but not all integers are natural numbers.
The above is some information about the definition of natural numbers, I hope it will help you.