Algebra Factoring Practice Test Results

Question 1
68% answer correctly
Which of the following sets of factors do 28 and 36 have in common?
{4, 7, 14, 28}
{1, 2, 4}
{0, 1, 2, 4}
{7, 14, 28}
Question 2
82% answer correctly
Which of the following is not a composite number?
44
6
10
29
Question 3
79% answer correctly
What`s the greatest common factor of 36 and 44?
8
4
1
2