You can
put this solution on YOUR website!
26 ways to choose the 1st letter.
26 ways to choose the 2nd letter.
10 ways to choose the 1st digit.
10 ways to choose the 2nd digit.
10 ways to choose the 3rd digit.
10 ways to choose the 4th digit.
26∙26∙10∙10∙10∙10 = 262∙104 = 676∙1000 = 676000
[It would seem strange to have a license plate "
", wouldn't it? :) ]
Edwin