fiding the greatest common factor of 40 and 15
To find the greatest common factor (GCF) of 40 and 15, we can list the factors of each number and then find the greatest common factor.
The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40.
The factors of 15 are: 1, 3, 5, 15.
The common factors of 40 and 15 are: 1 and 5.
The greatest common factor (GCF) is 5.