How do you find the LCM of 40 and 50?

Answer 1

40

20,2

10,2,2

5,2,2,2

50

25,2

5,5,2

2 x 2 x 2 x 5 x 5 = 200, the LCM

Answer 2

Factor them.

2 x 2 x 2 x 5 = 40

2 x 5 x 5 = 50

Combine the factors, eliminating duplicates.

2 x 2 x 2 x 5 x 5 = 200, the LCM

Answer 3

The LCM of these three numbers would be 600.

Answer 4

Factor them.

2 x 2 x 2 x 5 = 40

2 x 5 x 5 = 50

Select the highest number of each factor.

2 x 2 x 2 x 5 x 5 = 200, the LCM.

Answer 5

The LCM is 1960.