What is a factor of 9?

One factor of 9 is 3, as 3 multiplied by 3 equals 9. Factors are numbers that can be multiplied together to get a specific product. In the case of 9, other factors include 1 and 9, as any number multiplied by 1 results in that number, and 9 multiplied by 1 also equals 9. Factors are important in mathematics for simplifying calculations and solving equations.