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?

Algebra ->  Permutations -> 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?      Log On


   



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) About Me  (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 6%2A5%2A4%2A3%2A2%2A1=6%21=720

Answer by checkley71(8403) About Me  (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.