What is the greatest common factor of 40 and 56?

Answer 1

To find the greatest common factor (GCF) of 40 and 56, we can start by listing the factors of each number.

Factors of 40:

1. 1
2. 2
3. 4
4. 5
5. 8
6. 10
7. 20
8. 40

Factors of 56:

1. 1
2. 2
3. 4
4. 7
5. 8
6. 14
7. 28
8. 56

Now, let's identify the common factors from both lists:

• Common factors of 40 and 56: 1, 2, 4, 8

The greatest of these common factors is 8.

Thus, the greatest common factor of 40 and 56 is 8.