Roman numerals what does m mean

Roman numerals are often used in numbered lists, on buildings to state the year they were built, and in names of regents, such as Louis XVI of France. Feel free to link to this site if you find it useful. It's also possible to link directly to specific numbers, such as roman-numerals. You can also link to intervals, for instance roman-numerals. Convert Roman Numerals Arabic numerals:. It only coincidentally also stands for centum, the Latin word for a hundred.

Numbers are formed by combining various letters and finding the sum of those values. The numerals are placed from left to right, and the order of the numerals determines whether you add or subtract the values. If one or more letters are placed after a letter of greater value, you add.

If a letter is placed before a letter of greater value, you subtract. There are a number of other rules related to Roman numerals. For example, do not use the same symbol more than three times in a row. When it comes to subtracting amounts, only powers of 10 are subtracted, like I, X, or C, but not V or L.

For example, 95 is not VC. Keep reading to learn how to convert Roman numerals to everyday numbers, the history of Roman numerals, and where you might see them today. When combined in various forms, these seven letters create new numbers. Their placement is important, as the same letters create an entirely new number when in a different order. Here they are, from smallest to largest:. You can use a Roman numerals chart or conversion table to look up Roman numerals.

Alternatively, you can easily learn how to calculate them yourself with a few simple rules. Familiarize yourself with Roman numerals using these examples.

If you commit as many of them to memory as possible, you'll immediately recognize how they stack up and can be used to represent any kind of number.

An I in the wrong place can be the difference between 9 and 11, or even 99 and If a smaller number precedes a larger number, subtract the smaller number.

A consequence of this strict place rule is that an I can only be used to the left of a V or an X; an X can only be used to the left of an L or a C. To convert 18 in Roman Numerals, we will write 18 in the expanded form, i. IX means to subtract I from X, leaving 9.

L means The number googol is a one with a hundred zeros. It got its name from a nine-year old boy. A googol is more than all the hairs in the world. A hundred zeroes is a lot because each zero represents another factor of In this case, clearly, IIX is easier to make — which explains why this way of writing 8 appears so often when the number is carved.

Specifically, drawing a horizontal bar over the symbol multiplies it by 1, To convert 41 in Roman Numerals, we will write 41 in the expanded form, i.

To convert 51 in Roman Numerals, we will write 51 in the expanded form, i.