Find the Greatest Common Factor (GCF) of 40 and 15
To find the greatest common factor (GCF) of 40 and 15, we need to find the largest number that divides evenly into both 40 and 15.
The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40.
The factors of 15 are: 1, 3, 5, 15.
Looking at the factors, we can see that the largest number that divides evenly into both 40 and 15 is 5. Therefore, the GCF of 40 and 15 is 5.