Final answer:
The question does not supply sufficient information to determine the number of factories operated by Montenegro Metal Company. Details are provided about production technologies and resources, but they do not specify factory count.
Step-by-step explanation:
The question does not provide enough information to determine the exact number of factories operated by Montenegro Metal Company. The details given mention production technologies and the quantity of workers and machines used, but this does not clearly indicate how many factories there are. To know the number of factories Montenegro Metal Company operates, one would need specific information about the company's operations, which is not supplied here. Therefore, based on the information given, it is not possible to accurately assert whether Montenegro Metal Company operates one, two, three, or four factories.