find the greatest common factor of 15
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To find the greatest common factor (GCF) of 15, we need to determine the largest number that can evenly divide both 15 and another number.
To find the GCF of 15, we will list the factors of 15 and find the factors it has in common with other numbers. Then we will select the largest common factor.
The factors of 15 are: 1, 3, 5, 15
Now, let's check which factors 15 has in common with itself:
1, 3, 5, and 15 are common factors of 15.
Since we are looking for the greatest common factor, the largest common factor of 15 is 15.
Therefore, the greatest common factor of 15 is 15.