To count the number of objects in a collection, each object is paired off with a natural number, usually by mentally or verbally saying the name of the number and assigning it to a particular object. Learn what natural numbers are in Maths, their properties, definition, how to identify them, and difference from whole numbers with examples and number line. Natural Numbers on Number Line Natural numbers are represented by all positive integers or integers on the right-hand side of 0, whereas whole numbers are represented by all positive integers plus zero. Learn what natural numbers are, how they differ from whole numbers and integers, and what mathematical properties they have. See examples of natural numbers and non-natural numbers, and how they are used in everyday life and advanced mathematics.