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How many possible combinations of 5 letters?
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March 8th, 2008
I built a quick-and-dirty URL shortening app. It assigns a 5 letter code to your URL so you end up with URLs like: http://segdeha.com/u/urtfi
Given 5 letters (using a 26 letter alphabet), how many possible combinations does that make? How many would it be if I added 1 more letter (so, 6×26)?
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