Take all the Roman numbers (using the modern standard subtractive notation in which IV = 4, IX = 9, XL = 40, XLIX = 49, XC = 90, etc.) from I to M (1 to 1000)...

1. Which number has the most Roman letters?

2. If you group them by the number of Roman letters, which group has the most members?

3. How many numbers start with C?

4. There is something interesting about the groupings in #2. What is it?

I tried posting my list of all roman numerals from 1 to 1000 here but it did not fit.  My solution agrees with Charlies.

Edited on May 17, 2009, 5:06 pm

Posted by Daniel on 2009-05-17 17:04:47