Roman Numerals / 80

80 in Roman Numerals

LXXX

80 = L (50), XXX (10). That's LXXX, purely additive. 80 splits into 8 tens (LXXX), together forming LXXX. One below 80 is LXXIX (79); one above is LXXXI (81). LXXX hits the 3-repeat cap with XXX, for 80. 80: 2 Arabic digits, 4 Roman symbols, for 80. In binary, 80 is 1010000, 7 bits long for 80.