CDXLVII
CDXLVII is a Roman numeral. In the standard system of Roman numerals, C represents 100, D represents 500, X represents 10, L represents 50, and V represents 5, and I represents 1. To interpret CDXLVII, we look at the sequence of symbols. When a numeral of smaller value precedes a numeral of larger value, it is subtracted. Otherwise, values are added. Therefore, CDXLVII is interpreted as follows: D (500) minus C (100) equals 400. Then, L (50) minus X (10) equals 40. Finally, V (5) plus I (1) equals 6. Combining these parts, 400 + 40 + 6 equals 446. Thus, CDXLVII represents the number 446 in the Hindu-Arabic numeral system. This system of Roman numerals was widely used in ancient Rome and continued to be used in Europe for centuries for various purposes, including numbering, dating, and in monumental inscriptions. The subtractive principle, as seen with CD and XL, was a later development that helped to shorten numerical representations.