Roman Numerals

 Symbol Value 

 N 0 
 I, II, III 1 , 2, 3
 IV, V, VI, VII, VIII   4, 5, 6, 7, 8
 IX, X, XX, XXX   9, 10, 20, 30
 XL, L, LX, LXX, LXXX   40, 50, 60, 70, 80
 XC, C, CC, CCC   90, 100, 200, 300
 CD, D, DC, DCC, DCCC   400, 500, 600, 700, 800
 CM, M, MM, MMM 900, 1000, 2000, 3000
MV, V, VM, VMM, VMMM 4000, 5000, 6000, 7000, 8000 
 MX, X, XX, XXX   9000, 10000, 20000, 30000
 XL, L, LX, LXX, LXXX   40000, 50000, 60000, 70000, 80000
 XC, C, CC, CCC 90000, 100000, 200000, 300000
 CD, D, DC, DCC, DCCC   400000, 500000, 60000, 700000, 800000
 CM, M, MM, MMM 900000,  1000000, 2000000, 3000000