LXIX is the Roman numeral for the Arabic number 69.
To understand Roman numerals, one first has to understand what the numerals represent:
I=1
V=5
X=10
L=50
C=100
D=500
M=1,000
When the larger Roman numeral is in front followed by the smaller, you add the two, as in VI (5+1=6).
When the smaller Roman numeral is in front, you subtract it from the one following it, as in IV (1 from 5=4).
Therefore, LXIX is broken down as LX (50+10, or 60) + IX (1 from 10, or 9) = 69.
That's why you'll sometimes see strings of Roman numerals referring to copyright dates in movies as MCMXCVIIII. Broken down, M=1,000 + CM (100 from 1,000, or 900) + XC (10 from 100, or 90) + VIIII (5+4, or 9), or "1999."
Chat with our AI personalities