In a parliamentary system, by contrast, the legislature holds supreme power. The prime minister is chosen by members of the legislature (Parliament) from among their own number and in practice is the leader of the majority party in the legislature.
There are 435 Representatives in the House of Representatives. The number of members in the House of Representatives is a different story and is based on population.
Apportionment. The number of members in the U.S. House of Representatives has been set at 435 members since 1912. Each state is apportioned, or allocated a number of seats in Congress in accordance with how big its population is. At the very least, each state is given one seat.