In addition notation: I, II ,III, IIII, V, VI, VII, VIII, VIIII, X, XI, XII, XIII, XIIII, XV, XVI, XVII, XVIII, XVIIII, XX and XXI. In subtractive notation: I, II, III, IV, V, VI, VII, IIX, IX, X, XI, XII, XIII, IXV, XV, XVI, XVII, IIXX, IXX, XX and XXI.
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.
XXI is the number 21 in Roman numerals.
21 in Roman numerals is XXI (10 + 10 + 1)
x = 10 i = 1 xxi = 21
10 21 1986 in roman numerals: X XXI MCMLXXXVI
The date 21-11-2007 in Roman numerals would be XXI.XI.MMVII
The birthday 21-04-1989 in Roman numerals would be XXI.IV.MCMLXXXIX
21
21
June 21, 2008 in roman numerals is written as XXI.VI.MMVIII.
The 1 in Roman numerals is represented by the letter "I".
In today's terms February-21-1992 expressed in Roman numerals is February-XXI-MCMXCII.