Algebra Factoring Practice Test Results

Question 1
67% answer correctly
Which of the following is a composite number?
11
17
31
6
Question 2
90% answer correctly
What`s the least common multiple (LCM) of 7 and 2?
14
42
28
56
Question 3
93% answer correctly
What`s the least common multiple (LCM) of 9 and 2?
54
36
72
18