Base Roman numerals went up to one thousand:
I = 1
V = 5
X = 10
L = 50
C = 100
D = 500
M = 1000
To represent numbers greater than four thousand, a bar was place over the top of a base number. The bar indicated that the base number was multiplied by 1000. So, one million (1000 x 1000) would be written as:
_
M
So the number 1,000 is could also be:
_
I
Chat with our AI personalities
| li | lxx
1000 in roman numerals = M
_ M Is 1,000,000 in Roman numerals. The bar over the letter means it is times 1000. M is 1000 1000 X 1000 = 1,000,000
1.5 = IS in Roman numerals because 1= I and 0.5 = S
The number 100,000,000 can be represented by the Roman numeral [C] with a horizontal bar placed above it (which I can't write with my keyboard).