What is the greatest common factor of 45 and 3?

Answer 1

To find the greatest common factor (GCF) of 45 and 3, we can use the method of finding the factors of each number:

1. The factors of 45 are:

   • 1, 3, 5, 9, 15, 45

2. The factors of 3 are:

   • 1, 3

Now, we identify the common factors between the two lists:

• The common factors are: 1 and 3.

Among these, the greatest common factor is 3.

Therefore, the greatest common factor of 45 and 3 is 3.