WOLFRAM|DEMONSTRATIONS PROJECT

Roman Numerals

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ones
tens
hundreds
7
VII
16
XVI
8
VIII
17
XVII
9
IX
18
XVIII
10
X
19
XIX
11
XI
20
XX
12
XII
21
XXI
13
XIII
22
XXII
14
XIV
23
XXIII
15
XV
24
XXIV
Experiment with Roman numerals. What is the longest one you can find?