We need to find the GCF (Greatest Common Factor) of:
[tex]1633 \\ \\ 40 \\ \\ 681[/tex]
Step 1. Find all the Factors of each number.
The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
The factors of 681 are: 1, 3, 227, 681
The factors of 1633 are: 1, 23, 71, 1633
Then, the only common factor of these numbers is 1. Therefore, the greatest common factor is 1.
