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XXXIX = 39

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In Roman 39 is written as xxxix . Which is wrong according to rule because x is repeated 4 times . Why not we write xiL as 39.

Q: How can X in roman numbers be repeated 4 times in XXXIX?

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In Roman numerals, M represents the value 1000. There is no limit to how many times M can be repeated in a Roman numeral representation, so it can appear as many times as needed to represent the desired value. For example, MMM represents 3000.

Roman numerals were invented because in the roman times they did not have numbers so these were their numbers

Only once if they are: V L or D Four times if they are: I X C or M

Yes, the M can be repeated up to 3 times side by side before a numeral would be considered invalid. MMM = 3000 MMMM = Invalid roman numeral. MMMCM = 3900 and is valid.

The Roman numeral for 228 is CCXXVIII. It is represented by the combining of the symbols for 100 (C) and 10 (X), repeated twice, followed by the symbol for 5 (V) and 1 (I), repeated three times.

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In Roman numerals, M represents the value 1000. There is no limit to how many times M can be repeated in a Roman numeral representation, so it can appear as many times as needed to represent the desired value. For example, MMM represents 3000.

Roman numerals were invented because in the roman times they did not have numbers so these were their numbers

The number that is repeated the most times is the mode.

Only once if they are: V L or D Four times if they are: I X C or M

Yes, the M can be repeated up to 3 times side by side before a numeral would be considered invalid. MMM = 3000 MMMM = Invalid roman numeral. MMMCM = 3900 and is valid.

The Roman numeral for 228 is CCXXVIII. It is represented by the combining of the symbols for 100 (C) and 10 (X), repeated twice, followed by the symbol for 5 (V) and 1 (I), repeated three times.

the same as all integer exponents, repeated multiplication the indicated number of times. Negative numbers when cubed yield negative numbers.

Only once if they are: V, L or D Only four times if they are: I, X, C or M

It is repeated 85 times in Quran.

Multiplication is repeated addition. 3 x 3 = 3 added three times.

Multiplication is repeated addition. 3 x 3 = 3 added three times.

9074 = MMMMMMMMMLXXIV The modern convention states that M may not be repeated more than 3 times in succession. MMMCMXCIX (3999) is therefore the maximum Roman value.