Algebra Factoring Practice Test Results

Question 1
75% answer correctly
What`s the least common multiple (LCM) of 3 and 5?
3 and 5 have no common multiples
16
15
30
Question 2
93% answer correctly
What`s the least common multiple (LCM) of 9 and 2?
36
54
72
18
Question 3
65% answer correctly
Which of the following is a composite number?
2
46
5
3