Presumably you mean 10,000?
If so then it is: (X) or X with an horizontal bar above it.
Numerals in brackets or with a bar above them indicate multiplication by a thousand.
(X) = 1,000*10 = 10,000
__ M
The number 10 in Roman numerals is X.
10-19-1989 in Roman numerals is X.XIX.MCMLXXXIX
The number 10 in Roman numerals is X
10/11/89 in Roman numerals is X - xi - lxxxix
__ M
The number 10 in Roman numerals is X.
10 in Roman numerals is X
10-19-1989 in Roman numerals is X.XIX.MCMLXXXIX
X
The number 10 in Roman numerals is X
10/11/89 in Roman numerals is X - xi - lxxxix
Roman numerals of: (((MM))) = 10*10*1,000*2,000 = 200,000,000
To write 10 April 2010 in roman numerals, you could write it X-IV-MMX
10 in Roman numerals is X.
In today's notation of Roman numerals: X-XV-MCMXLIII
It is: CLXXV which means 100+50+10+10+5 = 175