Integer to Roman Numeral Converter

1 = I 2 = II 3 = III 4 = IV 5 = V 6 = VI 7 = VII 8 = VIII 9 = IX 10 = X 11 = XI 12 = XII 13 = XIII 14 = XIV 15 = XV 16 = XVI 17 = XVII 18 = XVIII 19 = XIX 20 = XX 21 = XXI 30 = XXX 40 = XL 50 = L 60 = LX 70 = LXX 80 = LXXX 90 = XC 100 = C 101 = CI 110 = CX 150 = CL 200 = CC 300 = CCC 400 = CD 500 = D 600 = DC 700 = DCC 800 = DCCC 900 = CM 1000 = M 1001 = MI 1100 = MC 1500 = MD 1900 = MCM 1999 = MCMXCIX 2000 = MM 2001 = MMI 2024 = MMXXIV 2025 = MMXXV 2100 = MMC 3000 = MMM 3500 = MMMD 3999 = MMMCMXCIX