CCXXV

CCXXV is the Roman numeral representation of the number 225. The Roman numeral system uses letters to denote numerical values. In this case, C represents 100, X represents 10, and V represents 5. The numerals are generally written in descending order of value, and their values are added together. Therefore, CCXXV is calculated as C + C + X + X + V, which equates to 100 + 100 + 10 + 10 + 5 = 225. This number is a perfect square, as 15 multiplied by 15 equals 225. It is also an odd number and a composite number, meaning it has factors other than 1 and itself. Historically, Roman numerals were widely used throughout Europe for various purposes, including counting, commerce, and architectural inscriptions, before the adoption of the Hindu-Arabic numeral system. While less common today for everyday calculations, Roman numerals are still found in specific contexts such as clock faces, numbering of regnal years, and outlines.