M=1000
anything larger requires a combination of numerals
The highest value that can be represented with a single-letter Roman numeral is 1,000, which is represented by the letter "M"
The number 80 is represented by the Roman numeral LXXX
The number 234 can be represented by the Roman numeral CCXXXIV
The number 1991 can be represented by the Roman numeral MCMXCI
The number 90 is represented by the Roman numeral XC
The number 50 is represented by the Roman numeral L
The number 80 is represented by the Roman numeral LXXX
The number 189 is represented by the Roman numeral CLXXXIX
The number 134 is represented by the Roman numeral CXXXIV.
The number 100 is represented by the Roman numeral C
The number 234 can be represented by the Roman numeral CCXXXIV
The number 1991 can be represented by the Roman numeral MCMXCI
The number 90 is represented by the Roman numeral XC
The number 50 is represented by the Roman numeral L
The number 67 can be represented by the Roman numeral LXVII
The number 275 is represented by the Roman numeral CCLXXV
The number 999 can be represented by the Roman numeral CMXCIX
The number 34 is represented by the Roman numeral XXXIV