Final answer:
Brazil has the largest number of Japanese-born people living abroad.
Step-by-step explanation:
The South American country with the largest number of Japanese-born people living abroad is Brazil. In 1908, Brazil reached an agreement with Japan to allow for the immigration of laborers to work on coffee plantations. As a result, Brazil now boasts the largest Japanese population outside of Japan. Peru is also home to a significant Japanese population, but Brazil has the largest number of Japanese-born people.