Home › Forums › The Sixteenth National Cipher Challenge: The Lost Legion › Multiplying with Roman numerals
If anyone is interested how Roman numerals might have been used in a multiplication calculation, this site: http://rbutterworth.nfshost.com/Tables/romanmult has an easy to follow description.
The method also works for other notations (e.g. decimal, binary…) and there are YouTube videos showing how to do this with decimal.