Algebra Factoring Practice Test Results

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