6, 12, 18 and so on.
30 and all its multiples
42
Their product.
It is: 24
No, they are just multiples of 2.
No, 2 and 28 are not multiples of 56, they are factors.
36
The LCM is 12.
The least common multiple of 25 , 3 = 75
10
2
To have an LCM, you need at least 2 numbers.