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How could you find the number of different combinations of 6 letters in a computer password?

User Faron
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1 Answer

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It depends on if a letter can be repeated.If yes, then the answer is:

26x26x26x26x26x26=308,995,776

If the letters cannot be repeated, then:

26x25x24x23x22x21=165,765,600
User As As
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