In Roman numerals, the letter C represents the number 100.
The symbol C comes from the Latin word centum, meaning “one hundred.” Roman numerals use letters from the Latin alphabet to express values, with the main symbols being I, V, X, L, C, D, and M. Their values are 1, 5, 10, 50, 100, 500, and 1,000 respectively.
In the standard modern system, symbols are usually arranged from largest to smallest, although subtraction is used in combinations such as IV for 4 and IX for 9. Thus, 100 can be written simply as C, while 104 is CIV and 199 is CXCIX.
L is 50, D is 500, and M is 1,000, so these letters are common alternatives in multiple-choice questions. Roman numerals remain visible on clock faces, monuments, book chapters, and the names of monarchs and popes.