Algebra Factoring Practice Test Results

Question 1
90% answer correctly
What`s the least common multiple (LCM) of 7 and 2?
56
14
28
42
Question 2
71% answer correctly
Which of the following is not a composite number?
9
28
17
38
Question 3
77% answer correctly
Which of the following is not a composite number?
13
44
6
15