It means: 100+10+5+1 = 116
The roman numeral M represents the number 1000.
'k' is not a Roman numeral. It is used to designate kilometer(s), or 1000.
The Roman numeral M or m, they both mean the same, is equal to 1000.
The Roman numeral M represents 1000. In ancient Roman use it did not always mean 1000, but it does today.
The Roman numeral VI represents 6 (V + I means 5 + 1)