The addition of prime cost and factory overhead is

The addition of prime cost and factory overhead results in the "cost of goods produced". Prime cost refers to the direct cost of materials and labor required for the production of a product, while factory overheads include indirect expenses like rent, utilities, and other costs associated with the production process. When these two costs are added together, they represent the total cost of producing a product. This cost is also referred to as the "cost of goods manufactured" or "cost of goods produced".