True False statement

I am trying to write a simple true false formula but am running into some issues.
I work in the warehouse environment and need to separate some of my bins from even and odd. I know how to write the formula to create a true false statement based on the number being even or odd (Example: =iseven(A1)). the end result being every even number will display true and every odd will display false.
The problem I am having is I am looking at my bin locations and they include not only a number but a letter as well. (Example- 45N001). It is the letter that is throwing off the formula. When I use the same formula i get (#value!) instead of the true false I am looking for.

Does anyone know how to write a formula to either include the letter or exclude the letter from the formula and still get a true false response?

I am looking at the last three digits. The 001. Yes the codes will always be in the six digit format. 45s001, 95n026, 15n095 and so on.

that did it sir. thank you very much