MCCXCIII

MCCXCIII is the Roman numeral for the integer 1293. It is composed of M (1000) + CC (200) + XC (90) + III (3). The notation uses the subtractive principle for 90, written as XC rather than LXXXX, and is the standard form in modern usage.

1293 is an odd, composite number. Its prime factorization is 3 × 431, with 431 prime, making MCCXCIII a semiprime. The sum of its digits is 15, so the number is divisible by 3 but not by 9.

As a year, MCCXCIII denotes the year 1293 in the Julian calendar. In historical inscriptions, chronologies, and documents that employ Roman numerals, this form appears to indicate that year.

In the context of numeral systems, MCCXCIII illustrates standard modern Roman numeral notation, combining a thousands component (M), a hundreds component (CC), a tens component using a subtractive pair (XC), and a units component (III). It is one of many examples used to teach or illustrate Roman numeral structure.

See also: Roman numerals, List of Roman numerals, 1293 (number).