Algebra Factoring Practice Test Results

Question 1
71% answer correctly
Which of the following is not a composite number?
38
28
17
9
Question 2
79% answer correctly
What`s the greatest common factor of 36 and 44?
1
2
4
8
Question 3
86% answer correctly
What`s the least common multiple (LCM) of 8 and 5?
20
160
80
40