Il numero romano MMMCXLVII nel sistema decimale vale: 3147.
MMMCXLVII in latino si scrive tria milia centum quadraginta septem,
mentre in italiano tremilacentoquarantasette.
MMMCXXVIII, MMMCXXIX, MMMCXXX, MMMCXXXI, MMMCXXXII, MMMCXXXIII, MMMCXXXIV, MMMCXXXV, MMMCXXXVI, MMMCXXXVII, MMMCXXXVIII, MMMCXXXIX, MMMCXL, MMMCXLI, MMMCXLII, MMMCXLIII, MMMCXLIV, MMMCXLV, MMMCXLVI, MMMCXLVIII, MMMCXLIX, MMMCL, MMMCLI, MMMCLII, MMMCLIII, MMMCLIV, MMMCLV, MMMCLVI, MMMCLVII, MMMCLVIII, MMMCLIX, MMMCLX, MMMCLXI, MMMCLXII, MMMCLXIII, MMMCLXIV, MMMCLXV, MMMCLXVI