Roman Numerals / 84

84 in Roman Numerals

LXXXIV

84 = L (50), XXX (10), IV (4, subtractive). That's LXXXIV, using one subtractive pair. 84 splits into 8 tens (LXXX), 4 (IV), together forming LXXXIV. One below 84 is LXXXIII (83); one above is LXXXV (85). LXXXIV hits the 3-repeat cap with XXX, for 84. 84: 2 Arabic digits, 6 Roman symbols, for 84. In binary, 84 is 1010100, 7 bits long for 84.