CCLXI
CCLXI is the Roman numeral representation of the number 261. In the Roman numeral system, C represents 100, L represents 50, and X represents 10. The numeral is constructed by adding these values together. Therefore, C (100) + C (100) + L (50) + X (10) + I (1) equals 261. This system uses a combination of letters to denote numerical values, with specific rules for combining them to form larger numbers. CCLXI follows the standard additive principle where symbols are generally arranged from largest to smallest value.