MMMCDLXXX

MMMCDLXXX is a Roman numeral representing the integer 3480. It is formed from the symbols M (1000), CD (400), and LXXX (80). The thousands portion MMM contributes 3000; the subtractive pair CD adds 400; and LXXX adds 80, yielding 3480.

Roman numerals combine additive and subtractive notation. In this numeral, the three Ms place 3000, CD represents 400 by subtracting 100 from 500, and LXXX represents 80 by adding three X's (10 each) to L (50). There is no zero symbol in Roman numerals, so numbers are constructed from these symbols without placeholders.

In modern usage, MMMCDLXXX may appear in contexts where Roman numerals are employed for numbering, such as page sections, chapter headings, clock faces, or catalog identifiers. The integer 3480 factors as 2^3 × 3 × 5 × 29.