What is the base for Roman Numerals? It starts off with unary then goes back and forth between multiples of 5 and 10.
What base is Roman Numerals?
5
$\begingroup$
number-systems
-
1Sometimes an "I" could stand for $(-1)$ as well, e.g.: "XIX" for $19$. :) – 2011-09-24
-
3There isn't a concept of "place value" with Roman numerals, so you can't really speak of a base... – 2011-09-24
-
1As a note: `IX` is relatively recent; classically it'd be `VIIII`... – 2011-09-24
-
0Base $10$, but not positional. – 2011-09-24
-
0Base 10, but relies on symbol-values to indicate position. – 2013-05-17