Algebra Factoring Practice Test Results

Question 1
72% answer correctly
Which of the following is a composite number?
23
4
19
5
Question 2
66% answer correctly
What`s the least common multiple (LCM) of 9 and 7?
64
252
9 and 7 have no common multiples
63
Question 3
89% answer correctly
Which of the following is not a multiple of 6?
36
24
56
30