How is representation of states determined with each house

The Constitution gave Congress the power to determine the size of the House and to divide representation according to state population. States with large populations have more representatives than small states. The Constitution provided for at least one representative for each state.

Determining the representation of the Territories in the House of Representatives. It provides that: Representation of each Territory2 in the House of Representatives is to be determined by dividing the population of each Territory by the quota determined for the States.