Algebra Factoring Practice Test Results

Question 1
68% answer correctly
Which of the following sets of factors do 28 and 36 have in common?
{0, 1, 2, 4}
{1, 2, 4}
{4, 7, 14, 28}
{7, 14, 28}
Question 2
82% answer correctly
Which of the following is not a composite number?
29
10
6
44
Question 3
66% answer correctly
What`s the least common multiple (LCM) of 9 and 7?
9 and 7 have no common multiples
63
64
252