Find the GCF of 24 and 40.

To find the greatest common factor (GCF) of 24 and 40, we can use several methods, such as listing the factors and finding the common ones or using prime factorization. Here’s one way to do it:

List the factors of each number:

• The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24.
• The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40.

Identify the common factors:

• The common factors of 24 and 40 are 1, 2, 4, and 8.

Find the greatest common factor:

• The greatest common factor of 24 and 40 is 8.

Therefore, the GCF of 24 and 40 is 8.