👉 In mathematics, "countless" refers to a quantity that is infinite in number. It can be thought of as an unending or endless sequence of events, objects, or individuals that do not end. In this context, "countless" means that there are infinitely many elements (or entities) present, and the count cannot be reduced. For example: - The number 9 is counted as infinite because it can occur in any order. - The set of all integers from -3 to