SOLUTION: How many 6-letter codes can you create out of the letters A, B, C, D, E & F if each letter can be repeated?

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Question 849156: How many 6-letter codes can you create out of the letters A, B, C, D, E & F if each letter can be repeated?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
There are 6 letters arranged in 6 slots. So the answer is 6^6 = 46,656


Note: If there were say 3 letters and 7 slots, then the answer would be 3^7 = 2,187. But this is just another example to show you how it works.