The seven commonly used Roman numerals have the following values...
I = 1
V = 5
X = 10
L = 50
C = 100
D = 500
M = 1000
However by placing a horizontal line above a numeral its value is multiplied by 1000, similarly by enclosing a numeral in brackets its value is also multiplied by 1000.
So [M] = 1000,000 and placing a horizontal line above it would increase its value to 1000,000,000. In the rules of writing Roman numerals you are allowed to repeat a numeral three times in succession so, the numeral [MMM] with a horizontal bar above it would have a value of 3000,000,000
M=1000 anything larger requires a combination of numerals
the answer to what is the roman numeral for 101 is CI
XXV is the Roman Numeral for 25
324 written in roman numeral is CCCXXIV
No, K is not a roman numeral.
A googleplexian being the highest number in existance, that would be the highest roman number. But I believe you mean highest roman numeral, which would be an M with a line over it, meaning 1,000,000.
M=1000 anything larger requires a combination of numerals
the answer to what is the roman numeral for 101 is CI
XXV is the Roman Numeral for 25
324 written in roman numeral is CCCXXIV
No, K is not a roman numeral.
There is not a Roman Numeral for 0.
The roman numeral for one is I.
Vivid is not a Roman numeral
M is a roman numeral that represents 1000.
V is a roman numeral representing the number 5.
The number 80 is represented by the Roman numeral LXXX