What are the factors of 18 24 and 30?

The factors of 18 are 1, 2, 3, 6, 9, and 18.

The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24.

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

1, 2, 3, and 6 are factors of all three numbers.

They are called common factors.

6 is the greatest common factor of 18, 24, and 30.