The answer to your question cannot be properly determined. To find the lowest (least) common multiple you must have at least two numbers.
The lowest common multiple (LCM) is: 120
The lowest common multiple of 8 and 20 is 40. 8 x 5 = 40 and 2 x 20 = 40.
The LCM is: 40
The lowest common multiple is 440
The lowest common multiple (LCM) of 22 and 40 is 440.
The least common multiple (LCM) is: 120
It is infinite but the lowest common multiple is 280
If you mean the lowest common multiple then it is 280
600
40
840
3,600