How many 3 character combinations can be made using letters AND numbers? I'm wondering how many possible 3 character combinations can be made using the 26 letters of the alphabet, and 0-9. I've seen that with just the alphabet you can create somewhere around 17k different combinations of 3 letters, but I assume adding in 0-9 must increase that number substantially.
Well, there are 36 combinations for each, and they're all independent. 36x36x36 is 46656.
It would have to be :
$999×26= ?$  $(? × 3) =?? (?? × 26) =$ and I believe there would be approximately  $2.023$ million combinations.