Algebra Factoring Practice Test Results

Question 1
86% answer correctly
What`s the least common multiple (LCM) of 8 and 5?
160
40
80
20
Question 2
69% answer correctly
Which of the following sets of factors do 32 and 24 have in common?
{16, 32}
{0, 16, 32}
{0, 1, 2, 4, 8}
{1, 2, 4, 8}
Question 3
74% answer correctly
What`s the greatest common factor of 16 and 4?
8
1
2
4