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: 3,948
The LCM is: 420
The Least Common Multiple (LCM) for 12 21 30 70 is 420.
LCM of 12 and 21 is 84, which is also a multiple of 28 so 84 is your answer.
The least common multiple of 6, 12 and 21 is 84.
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