What is the Roman numeral for ccd?
CCD is not a Roman numeral. C is a Roman numeral which has a value of 100. D is also a Roman numeral which has a value of 500. However according to the rules of writing Roman numerals although a C can preceed a D, to represent 400, no number should be preceed by two or more numbers of lesser value. If CCD was a Roman numeral it would have a value of 300 but the correct Roman numeral for 300 is CCC.
