Algebra Factoring Practice Test Results

Question 1
86% answer correctly
What`s the least common multiple (LCM) of 8 and 5?
160
80
20
40
Question 2
66% answer correctly
What`s the least common multiple (LCM) of 9 and 7?
64
9 and 7 have no common multiples
63
252
Question 3
63% answer correctly
What`s the greatest common factor of 68 and 76?
4
2
1
8