Its 42 (2x21)=42 (7x6)=42 (21x2)=42
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: 84
the answer is 21 due to the fact that 7*3=21 and 21*1=21
2 x 3 x 3 = 18 3 x 7 = 21 2 x 3 x 3 x 7 = 126, the LCM
The LCM of 7 and 21 is 21. Since 7 is a factor of 21, the LCM is automatically 21.21 is.
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.
lcm(49, 63, 21) = 441 49 = 7^2 63 = 3^2 x 7 21 = 3 x 7 lcm = 3^2 x 7^2 = 441
3: 3 28: 7, 2, 2 21: 7, 3 LCM = 3x7x4 = 84
2 x 7 = 14 3 x 7 = 21 2 x 3 x 7 = 42, the LCM
It is: 42
The LCM is 105.
The LCM is 42
The LCM is 84.
lcm(21, 56) = 168. 21 = 3 x 7 56 = 2^3 x 7 lcm = 2^3 x 3 x 7 = 168
LCM of 5 7 21 is 105.
The LCM of 7 21 35 is 105
21 = 3 * 7 60 = 2 * 2 * 3 * 5 LCM is 2 * 2 * 3 * 5 * 7 = 60 * 7 = 420.