Il numero romano MCCCXLIII nel sistema decimale vale: 1343.
MCCCXLIII in latino si scrive mille trecenti quadraginta tres,
mentre in italiano milletrecentoquarantatré.
MCCCXXIV, MCCCXXV, MCCCXXVI, MCCCXXVII, MCCCXXVIII, MCCCXXIX, MCCCXXX, MCCCXXXI, MCCCXXXII, MCCCXXXIII, MCCCXXXIV, MCCCXXXV, MCCCXXXVI, MCCCXXXVII, MCCCXXXVIII, MCCCXXXIX, MCCCXL, MCCCXLI, MCCCXLII, MCCCXLIV, MCCCXLV, MCCCXLVI, MCCCXLVII, MCCCXLVIII, MCCCXLIX, MCCCL, MCCCLI, MCCCLII, MCCCLIII, MCCCLIV, MCCCLV, MCCCLVI, MCCCLVII, MCCCLVIII, MCCCLIX, MCCCLX, MCCCLXI, MCCCLXII