The least common multiple (LCM) of two numbers is the smallest number (not zero) that is a multiple of both.
Multiples of 70 are
0,70,140,210,280,350.......
Multiples of 280 are
0,280,560,840......
So the LCM of 70 and 280 is nothing but 280
280
The LCM is 280.
The LCM is: 280
For the values: 70 and 40 the LCM is: 280
8 = 23 70 = 2 x 5 x 7 LCM = 23 x 5 x 7 = 280
280
280
The LCM is: 280
840 and 70, respectively.
The LCM is: 280
Assuming the question is about the LCM (not LMC), the answer is 280.
The LCM is 280.