How many permutations are possible of the letters A,B,C,D,E,F

Math question

6!=720

If letters can be repeated, 6x6x6x6x6x6 = 6^6 permutations are possible.
If letters cannot be repeated, there are 6! = 720 permutations.

In which language? English only? English and French? English and German? Or all the 200 languages using that alphabet?

6*5*4*3*2*1 = 720