Answer:
We have 32292000 different license plates.
Explanation:
Let us suppose the number and digits are non repeating.
So, we have to make combination of 2 different digits followed by 4 different letters.
We have 10 digits (0 to 9) and 26 letters (A to Z)
So, the different number of ways in which license plates can be formed are:

= 32292000