The lowest common multiple is the smallest number that each number is a factor of. So in this case it would be 180. 36x5=180 15x12=180 6x30=180
One of my preffered methods of working it out is taking the largest number and finding the lowest multiple of it that the others are a factor of also.
The LCM is: 180
The LCM is 36.
The LCM is 36.
The LCM is 1260.
The LCM is 36.
The LCM is: 180
The LCM is 36.
The LCM is: 36
The LCM of 3 and 6 is 6 The LCM of 5 and 7 is 35. The LCM of 8 and 9 is 72. The LCM of 12 and 15 is 60.
The LCM is 36.
LCM(6, 30, 36) = 180
For 36, 25, 15, 2 the LCM is: 900