Il numero romano MMMCLXXVIII nel sistema decimale vale: 3178.
MMMCLXXVIII in latino si scrive tria milia centum septuaginta octo,
mentre in italiano tremilacentosettantotto.
MMMCLIX, MMMCLX, MMMCLXI, MMMCLXII, MMMCLXIII, MMMCLXIV, MMMCLXV, MMMCLXVI, MMMCLXVII, MMMCLXVIII, MMMCLXIX, MMMCLXX, MMMCLXXI, MMMCLXXII, MMMCLXXIII, MMMCLXXIV, MMMCLXXV, MMMCLXXVI, MMMCLXXVII, MMMCLXXIX, MMMCLXXX, MMMCLXXXI, MMMCLXXXII, MMMCLXXXIII, MMMCLXXXIV, MMMCLXXXV, MMMCLXXXVI, MMMCLXXXVII, MMMCLXXXVIII, MMMCLXXXIX, MMMCXC, MMMCXCI, MMMCXCII, MMMCXCIII, MMMCXCIV, MMMCXCV, MMMCXCVI, MMMCXCVII