30
The LCM is 60.
66
80
The LCM of 6 & 10 is 30.
168
12
The LCM is: 120
The LCM of 3 and 6 is 6. The LCM of 10 and 2 is 10. The LCM of 2, 3, 6 and 10 is 30.
The LCM is 210.
It is: 24
The LCM of 6, 10 and 20 is: 60
6=2x3 10=2x5 so the LCM of 6 and 10 is 2x3x5=30