roman numeral definitions

I 1            Combinations: one, two, or three of any symbol just add
V 5                          larger followed by smaller just add
X 10                         smaller followed by larger subtracts smaller
L 50                                             and adds larger
C 100
D 500
M 1000

 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 22 XXII 23 XXIII 24 XXIV 25 XXV 26 XXVI 27 XXVII 28 XXVIII 29 XXIX
30 XXX
40 XL
41 XLI 42 XLII 43 XLIII 44 XLIV 45 XLV 46 XLVI 47 XLVII 48 XLVIII 49 XLIX
50 L
60 LX
70 LXX
80 LXXX
90 XC
91 XCI 92 XCII 93 XCIII 94 XCIV 95 XCV 96 XCVI 97 XCVII 98 XCVIII 99 XCIX
100 C
101 CI 102 CII 103 CIII 104 CIV 105 CV 106 CVI 107 CVII 108 CVIII 109 CIX
200 CC
300 CCC
400 CD
500 D
600 DC
700 DCC
800 DCCC
900 CM
1000 M
2000 MM

2014  MMXIV   MM is 2000, XIV is 14
2015  MMXV    MM is 2000, XV is 15
2016  MMXVI
2017  MMXVII
2018  MMXVIII
2019  MMXIX
2020  MMXX

3000  MMM
3999  MMMCMXCIX  MMM is 3000  CM is 900  XC is 90  IX is 9

_
V  5,000
_
X  10,000
_
L  50,000
_
C  100,000
_
D  500,000
_
M  1,000,000
           _
999,999   IM
           _
99,999    IC
           _
9,999     IX

999       IM




I feel sorry for the school children in Ancient Rome
who had to learn to add, subtract, multiply and divide.

Much easier for computer students today to learn binary
add, subtract, multiply, divide with only 0 and 1.


999,999    11110100001000111111 
99,999        11000011010011111
9,999            10011100001111
999                  1111100111

  Last updated 11/8/2019   IX/VIII/MMXIX