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6 character computer password is made up of 4 numbers followed by 2 letters. How many different passwords are possible?

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clearly repetition would be allowed in passwords, and I would assume we can start with zero as well

number of passwords
= (10^3)(26^2)
= ...

4 numbers 2 letters

(0-9) (26)

(10^4)(26^2)

(10^4)(26^2)=6,760,000

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