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To find the least common multiple of two numbers, they factor those numbers and take the maximum factor values to derive the LCM.
15: 3 x 5
18: 3 x 3 x 2 = 3^2 x 5
So, taking the maximum factors, one gets
2 x 3^2 x 5 = 2 x 9 x 5 = 90
90 is the least common multiple between them.
To get more multiples, just start with the least common one, and add it to itself until you derive enough multiples:
90 is the first
90 + 90 = 180 is the second
180 + 90 = 270
...
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What are two common multiples for 18 and 36?
All multiples of 36 are multiples of 18.
What are the common multiples of 15 and 16?
The common multiples of 15 and 16 are 240, 480, 720 and so on.
What are the multiples of 3 and 6?
The multiples of 3 are 3, 6, 9, 12, 15, 18, 21 and so on. The first six multiples of 6 are 6, 12, 18, 24, 30, 36, 42 and so on. Common multiples include all the multiples of 6.
What is the common multiple of 15 30 and 45?
There are infinite common multiples for a set of numbers. So it is not possible to write down all the common multiples. Some common multiples of 15, 30 and 45 are 90, 180, 270, 360,... There is another way to find common multiples: Write the multiples of LCM(15, 30, 45). Actually the common multiples of a set of numbers are the multiples of their LCM. LCM of 15, 30 and 45 is 90. And the multiples of 90 are 90, 180, 270, 360, 450, 540,... which are the common multiples of 15, 30 and 45.
What are the common multiples of 9 15 and 20?
The common multiples of 9, 15, and 20 are an infinite set of multiples of their least common multiple, which is 180. so the common multiples of 9, 15, and 20 are 180, 360, 540, 720, 900, 1080, 1260, 1440, 1620, 1800, and so on.
What common multiples for 9 15 and 18?
All multiples of 90.
What is the common multiples of 15 and 18?
90
What are the same multiples of 34 15 and 18?
Common multiples include any multiple of 1530.
Is 18 a common multiples of 3 and 6?
Yes it is... Multiples of 3 & 6 are 3, 6, 9, 12, 15 & 18
What are the least common multiples of 18 and 15?
90, 180, 270.
What are the common multiples of 12 15 and 18?
180, 360, 540 and so on.
What are the common multiples of 9 15 and 18?
There is an infinite number of common multiples for 9 15 and 18. A common multiple of any two or more numbers is any number into which each of two or more numbers can be divided evenly (zero remainder). However, the least or lowest common multiple (LCM) of 9 15 and 18 is 90.
What are the highest common multiples of 15 and 18?
There is no limit to the amount of common multiples. Numbers are infinite. If you take an example of a common multiple such as 360 then you can just keep adding noughts to it forever ie 3600 36000 etc and i'ts still a common multiple of 15 and 18.
What are the first 3 common multiples between 15 and 18?
90, 180 and 270
What are the least common multiples of 1418 and 15?
The LCM of 1418 and 15 is 21270. The LCM of 14, 18 and 15 is 3780.
What is the common multiples of 15?
Multiples of 15 include 15, 30 and 45. For them to be common, they need to be compared to another set of multiples.
What are the common multiples of 18 and 24?
The common multiples of 18 and 24 are 72 and 144.
