Wednesday, June 20, 2007

CM is good, MC is bad.
C is good, M is bad.
IX is good, XI is bad.
L is bad, I is good.
Why?

2 Comments:

Anonymous Joseph said...

The letters are Roman numerals.

CM = 900
MC = 1100
C = 100
M = 1000
IX = 9
XI = 11
L = 50
I = 1

The "good" numbers are perfect squares, the "bad" numbers are not.

June 24, 2007 at 7:26 AM  
Blogger steven said...

That's correct.

June 29, 2007 at 9:15 AM  

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