Answer:
Answer is 3
Explanation:
Given Input numbers are 39, 60, 78
To find the GCF of numbers using factoring list out all the factors of each number
Factors of 39
List of positive integer factors of 39 that divides 39 without a remainder.
1, 3, 13, 39
Factors of 60
List of positive integer factors of 60 that divides 60 without a remainder.
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
Factors of 78
List of positive integer factors of 78 that divides 78 without a remainder.
1, 2, 3, 6, 13, 26, 39, 78
Greatest Common Factor
We found the factors of 39, 60, 78 . The biggest common factor number is the GCF number.
So the Greatest Common Factor 39, 60, 78 is 3.
Therefore, GCF of numbers 39, 60, 78 is 3