What determines how many moons a planet has?

Answer 1

The number of moons a planet has is a natural phenomena that cannot be explained. The moons are there because a significant amount of debris is caught in the planet's gravitational field.

Answer 2

The number of moons a planet has is primarily determined by its size and gravitational force. Larger planets with stronger gravitational force are more likely to have multiple moons compared to smaller planets. Other factors such as proximity to other celestial bodies and past collision events can also influence moon formation.