The LCM is 20.
40, 80, 120.
20 is the smallest common multiple of 4, 5, and 10, and thus the first. Thus, the first three common multiples of 4, 5, and 10 are 20, 40 and 60.
The common multiples of 5 and 10 are: 10, 20, 30,40, .......... the least common multiple is 10
20 pinkgal333:20, 40, 60 are all common multiples.
Any multiple of 20.
4, 6 and 10
5
Any multiple of 20.
20, 40, 60
8/10/12
10, 20, 30 The common multiples of 5 and 10 are multiples of their lowest common multiple. The lcm of 5 and 10, is 10. Thus the first three common multiples are 10, 20, 30.
The Lowest Common Multiple (LCM) of 3 and 10 would be 30
20, 40, 60 are all common multiples.