Algebra Factoring Practice Test Results

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