The Quechua are the largest culture of Bolivia. They are native to Chuquisaca, Cochabamba, Potosí, Oruro and La Paz. They number over 2.5 million and their language is Quechua. They are mostly farmers and cultivate numerous varieties of corn and potatoes, quinoa, and other tubers, although their most lucrative crop by far is coca. They also practice animal husbandry.