The LCM is 168.
The Least Common Multiple (LCM) of 2 and 21 is 42.
LCM of 2 6 18 and 21 is 126.
The LCM is: 126
2
3: 3 28: 7, 2, 2 21: 7, 3 LCM = 3x7x4 = 84
The LCM is 21.
42
The LCM is 2.
lcm(49, 63, 21) = 441 49 = 7^2 63 = 3^2 x 7 21 = 3 x 7 lcm = 3^2 x 7^2 = 441
the lcm of 3 and 7 is 21 and the lcm of 7 and 21 is 21, so the lcm of 3, 7 and 21 is the lcm of 21 and 21 which is 21.
The LCM is 21.