The Roman numeral for 21 is XXI
The Roman numeral for 21 is XXI
XXL is not a valid roman numeral.
The Roman numeral for December 21, 2009 is XXI.XII.MMIX.
21 = XXI
IX.XI.MMX
The Roman numeral for 21 is XXI
The Roman numeral for 21 is XXI
21 = XXI
XXL is not a valid roman numeral.
The Roman numeral for December 21, 2009 is XXI.XII.MMIX.
21 = XXI
XXI
XXIXXI = 21
21
XXI = 21
XXI