Exercise 18-6 Cost classification LO C3 Georgia Pacific, a manufacturer, Incurs the following costs. (1) Classify each cost as elther a product or a period cost. If a product cost, identify it as direct materials, direct labor, or factory overhead, and then as a prime and/or conversion cost (2) Classify each product cost as either a direct cost or an indirect cost using the product as the cost object. (Leave no cell blank if there is no effect select "NA Not a product cost") Cost by Traceability Period or Product Direct material, Direct labor, or Factory Overhead Prime or Conversion Direct or indirect 1. Factory utilities 2 Advertising 3. Amortization of patents on factory machine 4. State and federal income taxes 5. Office supplies used 6. Insurance on factory building 7. Wages to assembly workers