The largest number to be denoted by a single letter was 1,000 (M). So I suppose a billion would be M repeated a million times!
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In Roman numerals, 1 billion is written as "M" with a horizontal line above it, which represents a thousandfold increase. The horizontal line is known as a vinculum and is used to multiply the value of the numeral by 1,000. Therefore, "M" with a vinculum above it represents 1 billion in Roman numerals.
Oh, what a lovely question! To write 1 billion in Roman numerals, you would use a combination of symbols. In Roman numerals, 1 billion is written as "M" with a horizontal line above it, which represents a thousand times a million. It's a beautiful way to represent such a large number with grace and elegance.
1 billion in roman numerals is 'm' with two horizontal lines above it: = m
The number 1 billion can be written as the Roman numeral [M] with a horizontal bar above it (which I can't write with my keyboard). Do that four times for four billion, then add VI which is six.
The Roman numeral representation for 1 is 'I'.
1 in roman numerals is written as I.
1.5 = IS in Roman numerals because 1= I and 0.5 = S