Final answer:
The greatest of the common factors of two or more numbers is the greatest common factor of the numbers. To find the greatest common factor, you can list the factors of each number and identify the largest factor that is common to all of the numbers.
Step-by-step explanation:
The greatest of the common factors of two or more numbers is the greatest common factor of the numbers. To find the greatest common factor (GCF), you can list the factors of each number and identify the largest factor that is common to all of the numbers.
For example, let's find the GCF of 12, 18, and 24:
Factors of 12: 1, 2, 3, 4, 6, 12.
Factors of 18: 1, 2, 3, 6, 9, 18.
Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24.
The common factors of 12, 18, and 24 are 1, 2, and 3. The greatest common factor among them is 3. Therefore, 3 is the greatest common factor of 12, 18, and 24.