Whole numbers are a set of numbers that include all the non-negative integers. This means they start from 0 and go up to infinity, including 1, 2, 3, and so on. Whole numbers do not include fractions or decimals, making them simple and easy to understand. In mathematics, whole numbers are used in various applications, such as counting objects or measuring quantities. They are essential in everyday life, from keeping track of scores in games to managing finances. Whole numbers form the foundation for more complex number systems, including integers and rational numbers.