It is 70
12
None. But 4 and 6 have a LCM (not LMC) of 12 and HCF of 2.
Not sure what an lmc might be but LCM(12, 15, 8) = 120
Least Common Multiple
If you mean the Least Common Multiple, LCM (not LMC), the answer is 84
what is the LCM of 12 and 15
12
24
Not sure about LMC but the LCM(15, 20) = 60
30
The LCM is 96.