Under today's rules now governing the Roman numeral system the equivalent of 398 in Roman numerals are CCCXCVIII but the ancient Romans would have notated them quite differently
In today's notation of Roman numerals: CCCXCVIII
988 = CMLXXXVIII in Roman numerals
it means 1,150 in roman numerals
Those Roman Numerals mean 1991.
Not a valid sequence for Roman numerals
In today's notation of Roman numerals: CCCXCVIII
It's CCCXCVIII.
CCCXCVIII
it means 1,150 in roman numerals
988 = CMLXXXVIII in Roman numerals
Not a valid sequence for Roman numerals
Those Roman Numerals mean 1991.
It does not mean anything because it is an invalid arrangement of Roman numerals
"D" in Roman Numerals equals 500.
In Roman numerals, it means N M C.
Roman numerals don't have a 0 symbol and so it is an invalid arrangement of Roman numerals
XL1 in roman numerals stand for 41.