Il numero romano MMCMLXVIII nel sistema decimale vale: 2968.
MMCMLXVIII in latino si scrive duo milia nongenti sexaginta octo,
mentre in italiano duemilanovecentosessantotto.
MMCMXLIX, MMCML, MMCMLI, MMCMLII, MMCMLIII, MMCMLIV, MMCMLV, MMCMLVI, MMCMLVII, MMCMLVIII, MMCMLIX, MMCMLX, MMCMLXI, MMCMLXII, MMCMLXIII, MMCMLXIV, MMCMLXV, MMCMLXVI, MMCMLXVII, MMCMLXIX, MMCMLXX, MMCMLXXI, MMCMLXXII, MMCMLXXIII, MMCMLXXIV, MMCMLXXV, MMCMLXXVI, MMCMLXXVII, MMCMLXXVIII, MMCMLXXIX, MMCMLXXX, MMCMLXXXI, MMCMLXXXII, MMCMLXXXIII, MMCMLXXXIV, MMCMLXXXV, MMCMLXXXVI, MMCMLXXXVII