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Q: How do you find the LCM with a factor tree?

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To find the GCF and the LCM you have to first at least try to use prime factorization. So use factor trees. Or for the LCM find th least common multiples of the number.

The LCM of 100 and 60 is 300.You can find that is by doing the simplest thing like upside down division of a factor tree. You have to divide with a prime number such as 2,3,5,7,11,13 or a number that cannot be divided by anything but 1 and itself.

The HCF is always a factor of the LCM of two numbers. The HCF is a factor of both the numbers which are factors of their LCM. Thus the HCF is also a factor of the LCM of the two numbers.

66 33,2 11,3,2

30 is the LCM of 3, 5 and 6It is 30

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it is a method in mathematics that helps to find out LCM

16080,240,2,220,2,2,2102,2,2,25,2,2,2,2,2You need another number to compare this one with to find a GCF or an LCM.

LCM- using 14 12 and 10 is 420

It is 48

you have to use a factor tree

The factor tree for the number 956 would be written out as 2*2*239. To find the factor tree you can use a factor tree calculator to get the answer you need.

Since 4 is a factor of 600, it is automatically the LCM of this problem.

You need at least two numbers to find an LCM. If that's 30 and 40, the LCM is 120.

The LCM is: 12 to find the LCM you can make a factor tree of each number and after you did that you find a number that all the factor trees have in common and write that number once and if there is more than one number in common with all of the factor trees also write that number down once the rest of the numbers are extras so you want to write those done too then you multiply all the numbers written down and you get the LCM

12 = 2*2*316 = 2*2*2*2, with the common factors underlined. So LCM = 2*2*2*3 = 24.

The LCM is 144.

The LCM of a set of integers is the smallest positive integer which can be divided evenly by each number in the set. The LCM of the set is the same however it is calculated.

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