The primary purpose of the G20 is to discuss and address global economic challenges. It serves as a forum for the world's leading economies to come together, deliberate on pressing economic issues, and coordinate efforts to address them. The G20 member countries collectively represent a significant portion of the global economy and population, making it a crucial platform for international economic cooperation and policy coordination. It focuses on areas such as financial stability, sustainable development, trade, and more, with the aim of promoting global economic stability and growth.