Question 180009: Suppose you are playing a word game with seven distinct letters. How many seven-letter words can there be?
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Suppose you are playing a word game with seven distinct letters. How many seven-letter words can there be?
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There are 7 choices for the 1st letter, then 6, then 5, etc.
So it's 7*6*5*4*3*2*1, called 7 factorial, 7! on the calculators.
7! = 5,040
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