What are the common factors of 30 and 50?

The factors of 30 are: 1 2 3 5 6 10 15 30.

The factors of 50 are: 1 2 5 10 25 50.

The common factors of 30 and 50 are: 1 2 5 10.

The greatest common factor of 30 and 50 is: 10.