What are the greatest common factors of 12 and 18?

What are the greatest common factors of 12 and 18?


12 = 2 * 2 * 3; 18 = 2 * 3 * 3, the common factor has 2 and 3, so the maximum common factor is 6



In the greatest common factor of 12 and 18, the () prime factor of 12 and 18 must be included


The greatest common factor of 12 and 18 must include the (common) prime factor of 12 and 18