3=3*1
7=7*1
21=3*7
LCM=(3*7)=(21*1)=21
The LCM is: 21LCM of 3 & 7 is 21.
3: 3 28: 7, 2, 2 21: 7, 3 LCM = 3x7x4 = 84
7 and 21 3 and 21
3 is a factor of 21, so ignore it. 21 factors to [3 7] 35 factors to [5 7] common factor [7] LCM = 21 * 35 / 7 = 105 ■
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.
21 is the LCM of 3 and 7
The LCM is: 21
The LCM is: 21LCM of 3 & 7 is 21.
The LCM is: 21
3: 3 28: 7, 2, 2 21: 7, 3 LCM = 3x7x4 = 84
The LCM is 21.
The LCM of the given two numbers is 21
The LCM is: 21
7 and 21 3 and 21
The LCM is 252.
The LCM of 3 and 7 is 21