CCXX

CCXX is the Roman numeral for the number 220. In this numeral system, C represents 100, and CCXX is formed by adding the values: 100 + 100 + 20.

Thus CCXX equals 220, with XX representing 20. The notation shown here uses additive form; subtractive combinations such as IV or IX are used in other contexts, but they are not needed for 220.

Uses of CCXX include marking years, volumes, or sections in historical texts, monuments, or catalogs where Roman numerals are preferred. For example, a year like 220 CE may be written as CCXX, and a date from 220 BCE would be CCXX BCE.

Beyond its numerical value, CCXX can appear as a sequence in identifiers or catalog numbers in various domains, though it is primarily understood as a Roman numeral. In general reference, CCXX is cited simply as the representation of the number 220 within the Roman numeral system. See also: Roman numerals.