Algebra Factoring Practice Test Results

Question 1
86% answer correctly
What`s the least common multiple (LCM) of 8 and 5?
160
80
40
20
Question 2
66% answer correctly
What`s the least common multiple (LCM) of 9 and 7?
252
63
64
9 and 7 have no common multiples
Question 3
93% answer correctly
What`s the least common multiple (LCM) of 9 and 2?
18
72
36
54