Algebra Factoring Practice Test Results

Question 1
86% answer correctly
What`s the least common multiple (LCM) of 8 and 5?
40
160
80
20
Question 2
69% answer correctly
Which of the following sets of factors do 32 and 24 have in common?
{0, 1, 2, 4, 8}
{0, 16, 32}
{1, 2, 4, 8}
{16, 32}
Question 3
76% answer correctly
Which of the following sets of factors do 68 and 60 have in common?
{4, 17, 34, 68}
{1, 2, 4, 128}
{1, 2, 4}
{17, 34, 68}