In todays modern notation of Roman numerals: XI-XVII-MCMLXXI
But the ancient Romans would have notated the equivalent of 1971 quite differently than how it is today.
The Roman numeral for 17 is XVII
The Roman numeral for 17 is XVII
The number 17 is represented by the Roman numeral XVII
The roman numeral for XVII means 17.
XVII
XVII
17
1 is not a Roman numeral, you numeral should be written as XVIII and it represents the number 18
17 - XVII XVII
It is: 17 = XVII
XVII
In Roman numerals XVII = 17