Which clotting factor is shared by both the intrinsic and extrinsic coagulation pathways?

Explanation

Factor V acts as a common cofactor in both the intrinsic and extrinsic pathways of the coagulation cascade, facilitating the conversion of prothrombin to thrombin. Factors II, III, and VII are specific to individual pathways, while Factor X is involved downstream but is not the common factor referenced here.