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
To find the Least Common Multiple (LCM) of 7, 3, and 21, we first need to identify the prime factors of each number. The prime factors of 7 are 7, of 3 are 3, and of 21 are 3 and 7. Then, we take the highest power of each prime factor that appears in any of the numbers. In this case, the LCM of 7, 3, and 21 is 21, as it includes the highest power of both 7 and 3.
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 of the given two numbers is 21
The LCM is 21.
The LCM is: 21
7 and 21 3 and 21
The LCM of 3 and 7 is 21
The LCM is 252.