SOLUTION: how many different six-digit numbers can be formed from the digits 1,2,3,4,5, and 6 if each digit is only used once?

Question 134022: how many different six-digit numbers can be formed from the digits 1,2,3,4,5, and 6 if each digit is only used once?
Found 2 solutions by solver91311, checkley71:
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
There are 6 ways to pick the first number, then 5 ways to pick the second number, 4 ways to pick the third number...

So
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
6!
6*5*4*3*2*1=720 DIFFERENT 6 DIGIT NUMBERS CAN BE FORMED WITH THESE 6 DIGITS WITHOUT REPEATS.
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