Where does CAMS_ID come from? Is this a foreign key related to an autonumber primary key in another table?
Identifier data should normally be in text field - SSN, zip code, phone number, employeeID, etc., even if only digits are involved. These values are usually a fixed length and can have leading zeros that would be dropped in a number type field. This is not numeric data in the sense of currency and quantity that will be used in mathematical operations to sum and average.