Algebra Factoring Practice Test Results

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