Answer:
4
Step-by-step explanation:
The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.
The greatest common factor of 16, 28, and 44 is 4
the answer is 4
16:1,2,4,8
28:1,2,4,7
44:1,2,4,11
