Algebra Factoring Practice Test Results

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