Conversation so far:
what is the largest christian religion in the world
The largest Christian denomination is the Catholic Church, with 1.3 billion baptized members
what countries have the largest population following the catholic faith
According to the CIA Factbook and the Pew Research Center, the five countries with the largest number of Catholics are Brazil, Mexico, the Philippines, the United States, and Italy.

Question: how many brazilians are of the faith
Self-contained rewrite: how many brazilians are of the catholic faith