In how many ways can a password be made using four letters from the 26 letter English alphabet letters can't be repeated

If you go by normal method, no. of possible passwords that can be created with 26 alphabets are 26X26X26X26 = 456,976

Step-by-step explanation:

. If you do not want to repeat the alphabets, you can use combinations. i. e. C (26, 4) or 26C4 = 358,800 ways