Il numero romano MCMV nel sistema decimale vale: 1905.
MCMV in latino si scrive mille nongenti quinque,
mentre in italiano millenovecentocinque.
MDCCCLXXXVI, MDCCCLXXXVII, MDCCCLXXXVIII, MDCCCLXXXIX, MDCCCXC, MDCCCXCI, MDCCCXCII, MDCCCXCIII, MDCCCXCIV, MDCCCXCV, MDCCCXCVI, MDCCCXCVII, MDCCCXCVIII, MDCCCXCIX, MCM, MCMI, MCMII, MCMIII, MCMIV, MCMVI, MCMVII, MCMVIII, MCMIX, MCMX, MCMXI, MCMXII, MCMXIII, MCMXIV, MCMXV, MCMXVI, MCMXVII, MCMXVIII, MCMXIX, MCMXX, MCMXXI, MCMXXII, MCMXXIII, MCMXXIV