The only countries in South America that share no border with Brazil are Ecuador and Chile.
Some countries that do not share a border with Bulgaria are Spain, Japan, and Brazil.
They share a border.
The South American countries of Chile and Ecuador do nor border Brazil.
Venezuela, Colombia, French Guiana, Suriname and Guyana share Brazil's northern border.
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0 - They share a border.
Ecuador does not share a border with Colombia. Colombia shares borders with Venezuela, Brazil, Peru, and Panama.
Bolivia and Brazil share a border.
There are three: United States, Belize and Guatemala.
Guyana, French Guiana, and Brazil share borders with Suriname. Guyana is on the western border. Brazil is on the southern border. French Guiana is on the eastern border. The Atlantic Ocean is on the northern border.
There are only two South American countries which does not share a border with Brazil. Those countries are Chile and Ecuador.