Il numero romano CCLXVIII nel sistema decimale vale: 268.
CCLXVIII in latino si scrive ducenti sexaginta octo,
mentre in italiano duecentosessantotto.
CCXLIX, CCL, CCLI, CCLII, CCLIII, CCLIV, CCLV, CCLVI, CCLVII, CCLVIII, CCLIX, CCLX, CCLXI, CCLXII, CCLXIII, CCLXIV, CCLXV, CCLXVI, CCLXVII, CCLXIX, CCLXX, CCLXXI, CCLXXII, CCLXXIII, CCLXXIV, CCLXXV, CCLXXVI, CCLXXVII, CCLXXVIII, CCLXXIX, CCLXXX, CCLXXXI, CCLXXXII, CCLXXXIII, CCLXXXIV, CCLXXXV, CCLXXXVI, CCLXXXVII