Il numero romano CCCLXVIII nel sistema decimale vale: 368.
CCCLXVIII in latino si scrive trecenti sexaginta octo,
mentre in italiano trecentosessantotto.
CCCXLIX, CCCL, CCCLI, CCCLII, CCCLIII, CCCLIV, CCCLV, CCCLVI, CCCLVII, CCCLVIII, CCCLIX, CCCLX, CCCLXI, CCCLXII, CCCLXIII, CCCLXIV, CCCLXV, CCCLXVI, CCCLXVII, CCCLXIX, CCCLXX, CCCLXXI, CCCLXXII, CCCLXXIII, CCCLXXIV, CCCLXXV, CCCLXXVI, CCCLXXVII, CCCLXXVIII, CCCLXXIX, CCCLXXX, CCCLXXXI, CCCLXXXII, CCCLXXXIII, CCCLXXXIV, CCCLXXXV, CCCLXXXVI, CCCLXXXVII