👉 In mathematics, a coarsened number is a number that can be written as a product of two or more integers, but no larger than its square root. For example, 2016 is a coarsened number because it can be expressed as 2 × 143. The term "coarsened" in mathematics refers to the concept of numbers being able to be written in such a way that their product with other integers does not exceed its square root. This property