Algebra Factoring Practice Test Results

Question 1
90% answer correctly
What`s the least common multiple (LCM) of 7 and 2?
42
28
14
56
Question 2
82% answer correctly
Which of the following is not a composite number?
29
44
6
10
Question 3
77% answer correctly
Which of the following is not a composite number?
15
44
6
13