dxvii = 517 and 517*3 =1551 which is MDLI in Roman numerals
III
The seven commonly used Roman numerals have the following values...I = 1V = 5X = 10L = 50C = 100D = 500M = 1000However 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
three hundred and eight
Roman numerals do not have any symbol occurring consecutively more than three (or sometimes four) times. A number such as 54 000 would be written as the symbol LIV (the Roman numeral for 54) with a horizontal line over the top. The horizontal line indicates the number is multiplied by ten thousand.The remainder of the number would be written as 679 is normally written: DCLXXIX
three Upper case I
The seven commonly used Roman numerals have the following values...I = 1V = 5X = 10L = 50C = 100D = 500M = 1000However 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
The seven commonly used Roman numerals have the following values...I = 1V = 5X = 10L = 50C = 100D = 500M = 1000However 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
Roman numerals do not have any symbol occurring consecutively more than three (or sometimes four) times. A number such as 76 000 would be written as the symbol LXXVI (the Roman numeral for 76) with a horizontal line over the top. The horizontal line indicates the number is multiplied by ten thousand.
That would be III (three capital I's).
A Roman numeral can be considered invalid due to several reasons. These include using a repetition of the same numeral more than three times in succession (e.g., IIII instead of IV), writing a numeral in a descending order (e.g., XCX instead of C), or using a numeral that is not part of the standard Roman numeral system (e.g., A instead of I).
Roman numerals do not have any symbol occurring consecutively more than three (or sometimes four) times. A number such as 56 000 would be written as the symbol LVI (the Roman numeral for 56) with a horizontal line over the top. The horizontal line indicates the number is multiplied by ten thousand.The remainder of the number would be written as 789 is normally written: DCCLXXXIV
They are: 43 = XLIII in its abridged format