CMXXXVIII

CMXXXVIII is the Roman numeral for the number 938. It is formed by the combination of CM (900), XXX (30), and VIII (8), so the total value is 900 + 30 + 8 = 938.

In Roman numerals, CM denotes 900 using subtractive notation, where C placed before M indicates 1000 minus 100. XXX denotes thirty by adding three tens, and VIII denotes eight by combining five and three (V + III). The numeral demonstrates standard rules of Roman numerals, including additive sequences and subtractive pairs.

CMXXXVIII may be used to denote a year in historical texts that employ Roman dating. It can also appear in modern contexts where Roman numerals are used for stylistic or traditional reasons, such as on clock faces, monuments, book chapters, or movie sequels. As a representation method, it highlights the broader Roman numeral system, which uses letters I, V, X, L, C, D, and M to convey different values and employs both additive and subtractive conventions.

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