Least Common Multiple

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Find Least Common Multiple (LCM) for each number set. For example, the LCM of 2 and 3 is 6.

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Right: #
Wrong: #
# Right & # Wrong of #

8 and 2

8 and 2
lcm = 8

3 and 7

3 and 7
lcm = 21

12 and 6

12 and 6
lcm = 12

12 and 8

12 and 8
lcm = 24

10 and 20

10 and 20
lcm = 20

20 and 5

20 and 5
lcm = 20

12 and 6

12 and 6
lcm = 12

20 and 15

20 and 15
lcm = 60

3 and 6

3 and 6
lcm = 6

2 and 10

2 and 10
lcm = 10

3 and 2

3 and 2
lcm = 6

15 and 5

15 and 5
lcm = 15

9 and 12

9 and 12
lcm = 36

10 and 4

10 and 4
lcm = 20

4 and 6

4 and 6
lcm = 12

5 and 3

5 and 3
lcm = 15

8 and 6

8 and 6
lcm = 24

6 and 3

6 and 3
lcm = 6

3 and 10

3 and 10
lcm = 30

6 and 4

6 and 4
lcm = 12