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
69% answer correctly
Which of the following sets of factors do 32 and 24 have in common?
{16, 32}
{0, 16, 32}
{1, 2, 4, 8}
{0, 1, 2, 4, 8}
Question 3
94% answer correctly
Which of the following is not a multiple of 9?
27
65
45
54