A whole number is a type of number that represents a countable quantity or value that is not a fraction, decimal, or negative number. It includes all the natural numbers (positive integers) along with zero. In mathematical notation, whole numbers are denoted by the symbol "W" or "ℤ⁺⁰". For example, 0, 1, 2, 3, 4, 5, etc., are all examples of whole numbers.
