CDLVI
CDLVI is a Roman numeral. It represents the number 456 in the Hindu-Arabic numeral system. To decipher this, one must understand the values assigned to individual Roman numerals: C represents 100, D represents 500, L represents 50, and VI represents 6. When Roman numerals are arranged in descending order of value, their values are added together. In CDLVI, the C before the D indicates subtraction, as it is a smaller value preceding a larger one. Therefore, CD signifies 500 - 100 = 400. Following this, L represents 50. The VI represents 6. Adding these components together, we get 400 + 50 + 6, which equals 456. Roman numerals were historically used in ancient Rome and continued to be used in Europe for various purposes, including numbering manuscripts, clocks, and inscriptions, long after the fall of the Roman Empire. The system relies on a combination of additive and subtractive principles to represent numbers.