The conversation between human and AI assistant.
I have a passcode with 4 numbers, how many combinations are there? The password can't have any of the same numbers and you can enter the code in whatever order. So, if the code is 1234, can you also enter: 4321?
Really? How did you get that number?
To calculate the total number of possible combinations for a password with 4 unique digits, you can use the formula n factorial, where n is equal to the number of unique digits. In this case, n would be equal to 4, and 4 factorial is 4 x 3 x 2 x 1, which is equal to 24.