2
The LCM is 84.
The LCM is 2520.
2 x 2 x 3 = 12 3 x 7 = 21 2 x 2 x 3 x 7 = 84, the LCM
LCM for 2 and 21 is 42.
The LCM is 12.
The LCM is 168.
The LCM is: 420
The LCM is: 3,948
The Least Common Multiple (LCM) for 12 21 30 70 is 420.
The least common multiple of 6, 12 and 21 is 84.
LCM of 12 and 21 is 84, which is also a multiple of 28 so 84 is your answer.
lcm(7, 12, 21, 27) = 756 7 = 7 12 = 2^2 x 3 21 = 3 x 7 27 = 3^3 lcm = 2^2 x 3^3 x 7 = 756