Access 的自動編號問題?(編號:1655)

If the primary key is set to the automate number with format ("AB"00000),
i.e, I want the number in this format --> "AB00001","AB00002,......."AB00200",.......,
However, when I get this primary key by using Sql statment, it only show the "Number", i.e. "1","2",,,,,,,"200"
Why and How to solve this problem?
Thanks!