Il numero romano MDCCXV nel sistema decimale vale: 1715.
MDCCXV in latino si scrive mille septingenti quindecim,
mentre in italiano millesettecentoquindici.
MDCXCVI, MDCXCVII, MDCXCVIII, MDCXCIX, MDCC, MDCCI, MDCCII, MDCCIII, MDCCIV, MDCCV, MDCCVI, MDCCVII, MDCCVIII, MDCCIX, MDCCX, MDCCXI, MDCCXII, MDCCXIII, MDCCXIV, MDCCXVI, MDCCXVII, MDCCXVIII, MDCCXIX, MDCCXX, MDCCXXI, MDCCXXII, MDCCXXIII, MDCCXXIV, MDCCXXV, MDCCXXVI, MDCCXXVII, MDCCXXVIII, MDCCXXIX, MDCCXXX, MDCCXXXI, MDCCXXXII, MDCCXXXIII, MDCCXXXIV