How is the prime minister of Canada office obtained?

The Prime Minister of Canada is typically the leader of the political party that wins the most seats in the House of Commons during a federal election. After the election, the Governor General formally invites the leader of the winning party to become Prime Minister and to form a government. If no party wins a majority, the leader may still become Prime Minister by forming a coalition or by gaining the support of other parties. The Prime Minister must then maintain the confidence of the House of Commons to stay in office.