LEAST COMMON MULTIPLE REVIEW: answers are at the bottom

Find the least common multiple.

1. 3 and 5

2. 2 and 14

3. 5 and 15

4. 7 and 12

5. 5 and 12

6. 3 and 6

7. 2 and 8

8. 2, 8, and 18

9. 6 and 10

10. 98 and 196

11. 3 and 12

12. 2, 4, and 13

13. 12 and 18

14. 8 and 12

15. 2, 5, and 12

16. 3, 9, and 21

17. 4 and 6

18. 6 and 13

19. 4, 12, and 16

20. 16 and 30

21. 5 and 10

22. 2, 7, and 11

23. 6, 12, and 14

24. 4 and 12

25. 4 and 10

26. 5, 15, and 16

27. 3, 6, and 27

28. 5 and 7

29. 8, 12, and 20

30. 5 and 8

31. 4 and 15

32. 2, 7, and 9

33. 7 and 13

34. 3, 6, and 18

35. 9 and 12

36. 6 and 8

37. 6, 24, and 54

38. 7 and 15

39. 2, 6, and 14

40. 2 and 4

41. 6 and 18

42. 6, 10, and 14

43. 6, 12, and 17

44. 6 and 9

45. 77 and 154



Answer Key

1. 3 and 5
15

2. 2 and 14
14

3. 5 and 15
15

4. 7 and 12
84


5. 5 and 12
60


6. 3 and 6
6


7. 2 and 8
8


8. 2, 8, and 18
72


9. 6 and 10
30


10. 98 and 196
196


11. 3 and 12
12


12. 2, 4, and 13
52


13. 12 and 18
36


14. 8 and 12
24


15. 2, 5, and 12
60


16. 3, 9, and 21
63


17. 4 and 6
12


18. 6 and 13
78


19. 4, 12, and 16
48


20. 16 and 30
240


21. 5 and 10
10


22. 2, 7, and 11
154


23. 6, 12, and 14
84


24. 4 and 12
12


25. 4 and 10
20


26. 5, 15, and 16
240


27. 3, 6, and 27
54


28. 5 and 7
35


29. 8, 12, and 20
120


30. 5 and 8
40


31. 4 and 15
60


32. 2, 7, and 9
126


33. 7 and 13
91


34. 3, 6, and 18
18


35. 9 and 12
36


36. 6 and 8
24


37. 6, 24, and 54
216


38. 7 and 15
105


39. 2, 6, and 14
42


40. 2 and 4
4


41. 6 and 18
18


42. 6, 10, and 14
210


43. 6, 12, and 17
204


44. 6 and 9
18


45. 77 and 154
154