👉 The term "quinquecostate" is a term used in mathematics to describe a collection of numbers that are all multiples of 10. The term originates from the Latin word "quintus" which means "twice", and "costata" which means "number". Essentially, it refers to a set of numbers that have exactly 10 as their common factor. For example, the set {5, 10, 20, 30} is
