👉 A quinquevirate, also known as a quinary, is a mathematical concept that represents the number of ways in which two or more objects can be divided into equal groups. It is often used to represent the number of possible outcomes when selecting items from a group of many. For example, if there are 4 apples and you want to divide them equally among 2 people, you would use the quinquevirate formula: n = (a + b - 1)