Algebra Factoring Practice Test Results

Question 1
67% answer correctly
Which of the following is a composite number?
17
31
11
6
Question 2
76% answer correctly
Which of the following sets of factors do 68 and 60 have in common?
{17, 34, 68}
{4, 17, 34, 68}
{1, 2, 4}
{1, 2, 4, 128}
Question 3
89% answer correctly
Which of the following is not a multiple of 6?
56
30
36
24