CDXLIX

CDXLIX is a Roman numeral that represents the number 449. The Roman numeral system uses letters to denote numerical values. In this case, C represents 100, D represents 500, X represents 10, L represents 50, and I represents 1. The numeral is constructed by combining these symbols. The arrangement follows specific rules. When a symbol of lesser value precedes a symbol of greater value, it is subtracted. Therefore, CD represents 400 (500 - 100), and XL represents 40 (50 - 10). The IX at the end represents 9 (10 - 1). Combining these parts, CDXLIX is 400 + 40 + 9, which equals 449. This system was widely used in ancient Rome and continued to be used in Europe for centuries for various purposes, including numbering and dates. Understanding Roman numerals requires familiarity with the values of each symbol and the rules of combination and subtraction.