Then why is it the world's largest religion? http://chartsbin.com/view/3nr http://www.infoplease.com/ipa/A0904108.html Christianity 2.1 billion Islam 1.5 billion Hinduism 900 million Buddhism 376 million Sikhism 23 million Judaism 14 million Bahaism 7 million Confucianism 6.3 million Jainism 4.2 million Shintoism 4 million Atheism makes up 2.32% of the world's population, while Christianity makes up 33.32%. 93.5% of the world's population follows one religion or another and believes in a higher power. 2.32% (atheists) do not. Can so few be right and so many be wrong? What are the odds of that?