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Question

What is LCM

1 year ago

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327 Replies

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7844 views

I

Iftikhar


please explain it briefly

327 Answers

W
Wanja Gatheru

LCM is the least common multiple. In the case of two numbers, the least common multiple is the smallest number that is a multiple of both numbers.

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The LCM is the Lowest Common Multiple. The Lowest Common Multiple of two numbers is the smallest number that is a multiple of both of them.

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Lowest or Least Common Multiple


What is the LCM of 7 and 3


List the multiples of each number:

7, 14, 21, 28, 35

3, 6, 9, 12, 15, 18, 21, 24


Find the lowest number that appears in both lists.


LCM of 7 and 3 = 21

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D
Diana Priyadarshini

LCM means least common multiple

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LCM stands for Lowest Common Multiple and refers the lowest number that can be divided by two other numbers. For example:


What is the LCM of 3 and 4?

Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27,...

Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44,...


Through observation both 12 and 24 are multiples of 3 and 4.


Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27,...

Multiples of 4: 4, 8, 12, 16, 20, 24, 28, 32, 36,...


Since 12 is the lowest value, 12 is the LCM of 3 and 4.


What is the LCM of 270 and 252

If you have covered finding the product of prime factors you may use this method to find the LCM of two numbers.


270=2x3x3x3x5

252=2x2x3x3x7


The LCM is the product of the lowest values shared between the product of prime factors.


270=2x3x3x3x5

252=2x2x3x3x7


So LCM=2x3x3

LCM=18

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LCM stands for Lowest common multiple. It is the smallest number that divides evenly into the numbers given in the question. e.g the LCM of 10 and 15 would be 5.

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R
Rishu

LCM is least common multiple. For example; LCM of 5 and 15 is 15.

C
Callum Webb

LCM is a method where you have two or more numbers, and you fild the smallest number that can be multiplied into all of the numbers.


For example ; Q: Find the LCM of 20 and 25


So here, we could first try 2 as the LCM, however because 25 is odd we know that no even number can be a multiple.


Therefore the smallest number that can go into both 20 and 25 is 5.

5x4 = 20

5x5 = 25

G
Gillian

Least/Lowest Common Multiple. The smallest positive integer that is divisible by both A and B. For example - if it was for 4 and 6, the LCM would be 2.

D
Devinder K

The LCM is the lowest common multiple.


The quickest and easiest way to find the LCM is to start with the higher or the highest of the numbers and multiply by 1.

Keep going up by increments of 1 until you find a multiple that both numbers will go into. That's your answer!


Eg. highest LCM of 3 and 7


Select highest (or in this case higher number) which is 7 and run through the multiples starting at 1.


7 x 1 = 7. Does 3 go into 7? No. Next step

7 x 2 = 14. Does 3 go into 14? No. Next step.

7 x 3 =21. Does 3 into 21? Yes


21 is the LCM of 3 and 7.

J
Jaani

LCM stands for Least Common Multiple. The lowest common multiple numbers from 2 or more numbers. For example, LCM of 4 and 5 is


The multiples of 4 are 4, 8, 12, 16, 20, 24 ....

The multiples of 5 are 5, 10, 15, 20, 25....


here in both cases, the common number is 20. So. The LCM of 4 and 5 is 20, which is the least common in both 4 and 5.

M
Muhammad Khan

is a method to find the smallest common multiple between any two or more numbers

R
Rajat Maini

LCM denotes the least common factor or multiple of any two or more given integers. For example, L.C.M of 16 and 20 will be 2 x 2 x 2 x 2 x 5 = 80, where 80 is the smallest common multiple for numbers 16 and 20

R
Raisa Faruqui

Lowest Common Multiple

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