CCCXVIII

CCCXVIII is the Roman numeral representation of the number 318. This numeral is constructed using standard Roman numeral symbols. The symbol C represents 100, X represents 10, and I represents 1. The Roman numeral system is additive and sometimes subtractive. In CCCXVIII, the symbols are arranged from largest to smallest value. First, CCC signifies 100 + 100 + 100, totaling 300. Following this, X represents 10. Finally, XVIII is interpreted as 10 + 1 + 1 + 1, which equals 13. Therefore, CCCXVIII is calculated as 300 + 10 + 13, resulting in the decimal value of 318. This numeral follows the common practice of placing symbols in descending order to sum their values.