Letters of the alphabet used in ancient Rome to represent numbers: I = 1; V = 5; X = 10; L = 50; C = 100; D = 500; M = 1000. The numbers one through ten are written I, II, III,

**IV**, V, VI, VII, VIII, IX, and X.**Roman numerals**are often used to signify divisions of a long work, or of a work with many parts.What is the Roman numeral 4?

The number of characters in the

**Roman numerals**for 1, 2, 3,**4**, 5, 6, 7, 8, 9, 10, (i.e., I, II, III, IV, V, VI, VII, VIII, IX, X, ) are 1, 2, 3, 2, 1, 2, 3,**4**, 2, 1, 2, 3,**4**, (OEIS A006968).Can the Roman numeral 4 Be IIII?

**IIII**versus

**IV**on Clocks. Expressed as

**Roman numerals**, the first twelve

**numbers**are usually given as I, II, III,

**IV**, V, VI, VII, VIII, IX, X, XI, XII. However, on many clock faces, when the

**numbers**on the dial are in

**Roman numerals**,

**IIII**replaces

**IV**.