210.(30 * 7 = 210)(21 * 10 = 210)
3 3*7=21 3*30=90 * * * * * That is the Greatest Common Factor, GCF, not the LCM. LCM(21, 90) = 630
210. 30 = 2 x 3 x 5 21 = 3 x 7 lcm = 2 x 3 x 5 x 7 = 210
The LCM is 42
The LCM is 105.
The LCM is 84.
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.
The LCM of 21 & 30 is... 210
LCM for 7 and 30 is 210.
LCM of 5 7 21 is 105.
The LCM of 7 21 35 is 105
The LCM is 252.