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Aug 25, 2014 at 11:27 comment added Joseph O'Rourke These are remarkably insightful observations! I see your point that it is easier to think in terms of of $(\mathbf{Z}/n\mathbf{Z})^\times$ than in terms of fractions.
Aug 25, 2014 at 2:11 review First posts
Aug 25, 2014 at 2:15
Aug 25, 2014 at 2:09 history answered user57455 CC BY-SA 3.0