Yes it is
LCM of 70 and 20 is 140.
lcm(20, 60) = 60.
The LCM of 60 and 70 is 420.
The LCM is 60.
The LCM is 60.
LCM(15, 20, 30) = 60
The LCM is 60.
The LCM is 60.
12-12,24,36,48,60,72, etc. 10-10, 20, 30, 40, 50, 60, 70, etc. 60 is the LCM
The LCM is 60.
The LCM of 20 and 30 is 60...