The LCM is 84.
LCM of 4 7 12 21 is 84
The LCM is 84.
84
84
The LCM is 84.
LCM(4, 21, 14) = 84
The LCM of 21, 84 and 126 is 252.
252 is the LCM of 21, 84, and 126.
3: 3 28: 7, 2, 2 21: 7, 3 LCM = 3x7x4 = 84
84 is a multiple of 7 {7 * 12 = 84}, so the answer is 84.