The multiples the 3 room 3, 6, 9, 12, 15, 18, ... EtcThe multiples the 5 space 5, 10, 15, 20, 25, ... Etc


Find the an initial Common (same) value:

*


The Least typical Multipleof 3 and also 5 is 15

(15 is a many of both 3 and also 5, and is the the smallest number prefer that.)


So ... What is a "Multiple" ?

We obtain a multiple the a number once we multiply that by another number. Such as multiplying by 1, 2, 3, 4, 5, etc, however not zero. Similar to the multiplication table. Here space some examples:


The multiples the 4 are: 4,8,12,16,20,24,28,32,36,40,44,...

You are watching: What are the first five multiples of 4

The multiples that 5 are: 5,10,15,20,25,30,35,40,45,50,...

What is a "Common Multiple" ?

Say we have detailed the first few multiples the 4 and 5: the common multiples space those the are uncovered in both lists:


The multiples that 4 are: 4,8,12,16,20,24,28,32,36,40,44,...
The multiples the 5 are: 5,10,15,20,25,30,35,40,45,50,...

Notice that 20 and also 40 show up in both lists? So, the common multiples of 4 and 5 are: 20, 40, (and 60, 80, and so on ..., too)

What is the "Least usual Multiple" ?

It is merely the smallest of the typical multiples.

In ours previous example, the smallest of the common multiples is 20 ...

... For this reason the Least typical Multiple the 4 and 5 is 20.

recognize the Least common Multiple

List the multiples the the numbers until we acquire our first match.


Example: uncover the least common multiple of 4 and 10:

The multiples the 4 are: 4, 8, 12, 16, 20, ...and the multiples that 10 are: 10, 20, ...

Aha! there is a match at 20. The looks choose this:

*

So the least common multiple that 4 and also 10 is 20


Example: discover the least typical multiple of 6 and 15:

The multiples the 6 are: 6, 12, 18, 24, 30, ...and the multiples that 15 are: 15, 30, ...

There is a complement at 30

So the least typical multiple the 6 and also 15 is 30


Example: find the least common multiple the 4, 6, and 8

Multiples the 4 are: 4, 8, 12, 16, 20, 24, 28, 32, 36, ...Multiples the 6 are: 6, 12, 18, 24, 30, 36, ...Multiples of 8 are: 8, 16, 24, 32, 40, ....

See more: How To Tell When Rhubarb Is Ripe, How And When To Harvest Rhubarb

So 24 is the least typical multiple (I can"t uncover a smaller sized one!)


Hint: We have the right to have smaller sized lists for the enlarge numbers.

Least typical Multiple Tool

There is one more method: the Least common Multiple device does it automatically. (Yes, we waited till the end to phone call you!)


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