Question: what is the main religion in the world
Answer: Religion Number of followers ( in millions ) Cultural tradition Founded References Christianity 01 ! 2,420 01 ! Abrahamic religions Middle East Islam 02 ! 1,800 02 ! Abrahamic religions Middle East Hinduism 03 ! 1,150 03 ! Indian religions ( Dharmic ) Indian subcontinent Buddhism 05 ! 520 05 ! Indian religions ( Dharmic ) Indian subcontinent Folk religion 04 ! 400 04 ! Organized religion Worldwide