The longest Roman numeral with a value under 1000 would be DCCCLXXXVIII (888)
The Roman numerals MCMXXI represent the number 1921.
Under today's rules 490 expressed in Roman numerals is CDXC but the Romans themselves would have probably preferred XD.
Under today's rules they represent 692 in Roman numerals.
Under today's rules the Roman numerals CMXLVII represent 947.
It is: DCCCCLXXXXVIIII = 999 although some would say it is DCCCLXXXVIII = 888 because under today's rules now governing the Roman numeral system 999 is now considered to be CMXCIX but the ancient Romans would have worked out the equivalent of 999 as DCCCCLXXXXVIIII which can be abridged to IM = -1+1000 = 999
The Roman numerals MCMXXI represent the number 1921.
Under today's rules 490 expressed in Roman numerals is CDXC but the Romans themselves would have probably preferred XD.
Under today's rules they represent 692 in Roman numerals.
Under today's rules the Roman numerals CMXLVII represent 947.
The given Roman numerals under today's rules now governing the Roman numeral system represent the equivalent of 1697 in Hindu-Arabic numerals.
It is already in Roman numerals but if you meant its equivalent in Hindu-Arabic numerals then under the present rules now governing the Roman numeral system it is 1465.
It is: DCCCCLXXXXVIIII = 999 although some would say it is DCCCLXXXVIII = 888 because under today's rules now governing the Roman numeral system 999 is now considered to be CMXCIX but the ancient Romans would have worked out the equivalent of 999 as DCCCCLXXXXVIIII which can be abridged to IM = -1+1000 = 999
Under todays modern rules governing the Roman numeral system it is the equivalent in Hindu-Arabic numerals of 3900
Under today's rules it is: CMXXIV
Under today's rules it is: CDXCIV
To convert September 27, 1980 into Roman numerals, you can write it as XXVII.IX.MCMLXXX in Roman numerals.
The Roman numeral MMCMLX translates to 2960 in Arabic numerals.