Algebra Factoring Practice Test Results

Question 1
67% answer correctly
What`s the greatest common factor of 48 and 24?
1
2
48
24
Question 2
86% answer correctly
What`s the least common multiple (LCM) of 8 and 5?
160
40
20
80
Question 3
65% answer correctly
Which of the following is not a composite number?
22
21
19
92