To calculate the possibilities, we need to know:
* The length of the license plate: How many characters are in a license plate? (e.g., 7 characters)
* The characters allowed: Is it letters only? Numbers only? Letters and numbers? What about special characters? (e.g., uppercase letters and digits 0-9)
Example:
Let's say a license plate has 7 characters and uses only uppercase letters (A-Z).
* For the first character, there are 26 choices.
* For the second character, there are only 25 choices left (since we can't repeat).
* For the third, there are 24 choices.
* And so on...
The total number of unique license plates would be 26 * 25 * 24 * 23 * 22 * 21 * 20 = 3,315,312,000
If we allowed numbers as well, the possibilities would be far greater. A license plate with 7 characters using uppercase letters and digits (0-9) would have 36 choices for the first position, 35 for the second, and so on.
Therefore, you need to specify the license plate format to determine how many unique license plates are possible without repetition.
