Answer: 7
Step-by-step explanation:
The most complex but easy to understand way is to list out all the factors to find the greatest common factor (GCF) of each number.
Factors of 14: 1, 2, 7, 14
Factors of 35: 1, 5, 7, 35
Factors of 49: 1, 7, 49
It is clear that the GCF (Greatest Common Factor) of 49, 35, and 14 is 7
