21 = XXI
The Roman numeral for 21 is XXI
XXI is the number 21 in Roman numerals.
XXIXXI = 21
21 = XXI
21 = XXI
21 in Roman numerals is XXI (10 + 10 + 1)
21 in Roman numerals is XXI. 1 in Roman numerals is I. 90 in Roman numerals is XC. So, 21 1 90 would be XXI I XC in Roman numerals.
21 = XXI
The date 21-11-2007 in Roman numerals would be XXI.XI.MMVII
10 21 1986 in roman numerals: X XXI MCMLXXXVI
The birthday 21-04-1989 in Roman numerals would be XXI.IV.MCMLXXXIX
The Roman numeral for December 21, 2009 is XXI.XII.MMIX.