Which countries have the largest economies in the world?

With a GDP (PPP) of $14,720,000,000,000 USD, the United States is the largest economy. The US is followed by China (#2) with a GDP of $ 9,872,000,000,000; Japan (#3) with a GDP of $ 4,338,000,000,000; and India (#4) with a GDP of $4,046,000,000,000; and Germany with a GDP of $2,951,000,000,000.

All figures from CIA World Factbook 2010 - GDP estimate expressed as PPP