You write 1533 in roman numerals like this: MDXXXIII
Roman numerals are numbers.
I-XXX is how you write that with Roman numerals.
the way you write 1000 in roman numerals is M
627 in roman numerals: DCXXVII
DLXIII is 563 in roman numerals!
367 in Roman Numerals is CCCLXVII
109 in Roman numerals is CIX.
CCCLII = 352 in Roman numerals.
403 is CDIII in Roman Numerals
In Roman numerals 97 = XCVII
453 in Roman numerals is CDLIII.