Algebra Factoring Practice Test Results

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