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To find the Least Common Multiple (LCM) of two or more numbers, write down the multiples of the numbers until they match. I will use 6 and 9 as an example.
6: 6, 12, 18...
9: 9, 18, 27...
The numbers in bold are your LCMs. 18 is the LCM of 6 and 9.
Wiki User
∙ 12y ago
Wiki User
∙ 8y agoExample: 30 and 42
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the common factors.
2 x 3 = 6, the GCF
Select the highest amount of each factor.
2 x 3 x 5 x 7 = 210, the LCM
Check it.
30 x 42 = 1260
210 x 6 = 1260
It checks.
Joshua Sanders
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Can you show the work of how to get the LCM of 3 7and10?
Since they have no common prime factors, multiply them together.3 x 7 x 10 = 210, the LCM
Can you always find the LCM for two numbers by multiplying them Why or why not?
This does not work when one of the numbers is negative.
How do you you work out to LCM of 12 20 and 24?
12 is a factor of 24 so you need only consider the LCM of 20 and 24.20 = 4*5 24 = 4*6 So the LCM is 4*5*6 = 120.
What is the LCM of 10 5 and 9?
Well ok here is the whole thingy 10: 20 5:5,10,15,20 LCM:20 You need to do the rest of the work
What is the LCM of 2 and 10?
The LCM is: 10The LCM is 10.
What LCM of 610?
To work out the LCM, you need two numbers. You have provided only one so you can't work out the LCM.
How do you work out the LCM of 6a cubed and 8a?
Do the numbers first. The LCM of 6 and 8 is 24. Choose the highest of the powers. The LCM is 24a^3
What is the LCM of twelve and seven with work?
The LCM of 12 and 7 is their product which is 12 times 7 = 84
LCM of 10 and 25?
50 should work: 50 = 5 * 10 and 50 = 2* 25.
How do you work out the LCM of 6 and 9?
List the multiples.6, 12, 18, 249, 18, 27The LCM is 18.
What is the LCM of 3 2 5?
The LCM of 2,3, and 5 is 30 since they are all primes we must find the LCM by multiplying them all together.
Lcm of 4 and 7?
The LCM of 4 and 7 is 28 because...4x7=28 and anything under 28 wouldn't work
What is the LCM of 6 15 20 plus work?
prime factorization of each: 2x3 , 3x5, 2x2x5 so LCM = 2x2x3x5 = 60
What is the LCM of 48 and 72?
The least common multiple (LCM) of 48 and 72 is 144.
How do you work out a LCM?
Here you go! https://en.wikipedia.org/wiki/Least_common_multiple
What happens if the slide ladder does not work for the GCF and LCM?
you have to use a factor tree
Can you show the work of how to get the LCM of 3 7and10?
Since they have no common prime factors, multiply them together.3 x 7 x 10 = 210, the LCM
