XCDVIII

XCDVIII is a Roman numeral. When converted to the Hindu-Arabic numeral system, XCDVIII represents the number 498. The Roman numeral system uses letters to denote specific values. In XCDVIII, X represents 10, C represents 100, D represents 500, and V represents 5, and I represents 1. The placement of these letters determines the overall value. Here, CD indicates 400 (500 - 100) because C precedes D, signifying subtraction. VIII represents 8 (5 + 1 + 1 + 1). Therefore, XCDVIII is interpreted as 10 + 400 + 8, which equals 498. The subtractive principle, where a smaller numeral before a larger one indicates subtraction, is a key aspect of Roman numeral interpretation. Without this principle, XCDVIII would be interpreted additively as 10 + 100 + 500 + 5 + 1 + 1 + 1, resulting in a much larger and incorrect number.