The Roman numeral MCCCXLV corresponds to the Arabic number 1345.
MCCCXLV = 1345
Symbols are written and read from left to right, from highest to lowest.
If number MCCCXLV is within to text or sentence it should be read in its equivalent in Arabic numbers, in this case 1345.
MCCCXLIV is number 1344
MCCCXLVI is number 1346
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