The Clay Mathematics Institute is a non-profit organization based in Cambridge, Massachusetts, established in 1998. Its primary mission is to promote mathematical research and education. The institute is well-known for its Millennium Prize Problems, a set of seven unsolved mathematical problems, each with a reward of one million dollars for a correct solution. In addition to the Millennium Prize, the Clay Mathematics Institute supports various initiatives, including conferences, research grants, and educational programs. It aims to foster collaboration among mathematicians and to enhance public understanding of mathematics through outreach and resources.