You might list the prime factors for each number, then gather all the prime factors that appear in one or more of the numbers. Example: LCM of 2, 3, 4, 5, 6
2 = 2
3 = 3
4 = 2x2
5 = 5
6 = 2x3
The factor 2 has to be included twice (since it appears twice as a factor in 4), so the LCM is 2x2x3x5 = 60.
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if the gcd and lcm are given and one of the numbers are also given,multiply the gcd and lcm and divide them by the given number
At least two or more numbers must be given to find the LCM of them
Firstly, the LCM f a single number is the number itself.The LCM of many numbers is found by dividing the numbers with the smallest prime numbers until the numbers are completely divided and the remainder is zero.Then all the prime numbers used for dividing is multiplied and the LCM is found.
The LCM of the given two numbers is 4080
The LCM of the given three numbers is 570