The answer you see is 1.
The LCM (lowest common multiple) of 40, 100, 140 is 1400.
LCM 140 and 28 is 140.
The LCM is 140.
The LCM is 140.
The LCM is 140.
The LCM is: 140
The LCM of 35, 70, and 140 is 140.
The LCM is 700.
The LCM is 840.
The LCM is 140.
The LCM is 1260.
The LCM is 980.