IX because I is one and X is ten and when a smaller number comes before a larger number it means subtract from, in which case it is X - I or 10 - 1 which results in 9.
IX
IX
The largest number you can write using Roman numerals without an overline at any symbol is 3999 (MMMCMXCIX), and the largest possible number is 3999999 (MMMCMXCIXCMXCIX, with an overline over the first nine letters.
mxxxviiii Or: MXXXIX
The number 1966 (nineteen sixty six) in Roman numerals is MCMLXVI
MMCCXXXIX
The number 1971 is represented in Roman Numerals by MCMLXXI.
The largest number you can write using Roman numerals without an overline at any symbol is 3999 (MMMCMXCIX), and the largest possible number is 3999999 (MMMCMXCIXCMXCIX, with an overline over the first nine letters.
mxxxviiii Or: MXXXIX
The number 1966 (nineteen sixty six) in Roman numerals is MCMLXVI
MMCCXXXIX
It is written as: VII.VII.MCMLXXXIX.
The number 1971 is represented in Roman Numerals by MCMLXXI.
ic
In today's terms 2,359,245 = (MMCCCLIX)CCXLV But during the Roman era it would have probably been written out differently in the way that we write out Roman numerals today.
Nine thousand using standard numerals is 9,000
LXXXIX
9,000 in Roman numerals is IX with a line over it. The line multiplies 9 to 9,000.
On Converting between Arabic and Roman Numbers we get: 89 in roman numerals is written as : LXXXIX where L=50 and X=10 and iX=9.