A state's license plates consist of three letters followed by three numerals, and 241 letter arrangements are not allowed. How many plates can the state issue?

Question

I did it this way
26x26x26x10x10x10= 17,576,000
Have I done this correctly or am I missing a part. THANK YOU SO MUCH

Answer 1

So far so good, but what about the 241 letter arrangements not allowed?

Answer 2

would I subtract the 241 form the total or place it in between

26x26x26x(-241) 10x10x10 I am confused

Answer 3

arrangements of three letters:
26^3 = 17576
but subtract 241
17335

times 1000
17,335,000