Natural numbers are the set of positive integers that we use for counting and ordering. They start from 1 and go on infinitely: 1, 2, 3, 4, 5, .... These numbers are fundamental in mathematics and are often the first numbers we learn as children. They help us count objects, like apples or books, and understand sequences, such as days of the week. Natural numbers do not include 0 or any negative numbers. They are used in various everyday situations, like determining how many friends are at a party or how many steps you take in a day. Understanding natural numbers is essential for building a strong foundation in math.