David Butler (@davidkbutleruoa) 's Twitter Profile
David Butler

@davidkbutleruoa

Lecturer at Maths Learning Centre, Uni Adelaide (my views here). Grad Dip Ed & PhD Finite Geom. Love maths and helping people learn. he/him #MTBoS #100factorial

ID: 2830761913

linkhttp://blogs.adelaide.edu.au/maths-learning/ calendar_today25-09-2014 00:02:58

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David Butler (@davidkbutleruoa) 's Twitter Profile Photo
David Butler
@davidkbutleruoa

2 years ago

The word "prime" means "first". The number 6 appears third when you count by 2's, second when you count by 3's and first when you count by 6's. The number 7 appears first when you count by 7's. That's it. Prime numbers never appear anywhere but first when you count by something.