👉 The term "quinquagesimal" is a word used in mathematics to represent a decimal number that has 5 as its leftmost digit. It is also known as a quinary number, and it can be represented as follows: Quinary Number = Quin + (Base - 4) Where: - Quin = Leftmost digit of the quinary number - Base = Decimal place value For example, if we have the decimal number 203.567
