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There is really no such thing as a "greatest common multiple". Once you find the least common multiple of a set of numbers, you can keep adding the LCM to itself over and over again. Each new number you get will be a common multiple of your set of numbers, but each new number will always be larger than the previous. This means that you can keep adding while the number approaches infinity and you will still never find a greatest multiple.

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9y ago
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7y ago

The greatest common multiple of any set of integers is infinite.

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Q: What is the greatest common multiple for 18 and 15?
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Related questions

What is the greatest common multiple of 12 and 18?

There is no such thing as the Greatest Common Multiple. For any multiple calculated, you could add the LCM to get a higher number; essentially, the greatest common multiple of any set of numbers is infinite. The least common multiple of 12 and 18 is 36, The greatest comon factor of 12 and 18 is 6.


What is the highest common multiple of 15 and 18?

1 and 3 are the only numbers that have common multiples of 15 and 18.


What common factors have 18 as their greatest common multiple?

Any set of factors that had 18 as a common multiple would also have multiples of 18 in common, so 18 can't be greatest. 9 and 6 have 18 as their least common multiple.


What is the greatest common multiple of 6 and 18?

There is no (Greatest Common Multiple) as this would be infinity.You can have Lowest Common Multiple (18 in this case), orGreatest Common Factor (6 in this case).


What is the common multiple of both 15 and 18?

The lowest common multiple of 15 and 18 is 90


What is the greatest common divisor of 15 and 18?

The Greatest Common Divisor of 15, 18 3.


What is the greatest common multiple of 72 and 18?

The greatest common multiple of any set of integers is infinite.


What is the greatest common multiple of 18 and 84?

The greatest common multiple of any set of integers is infinite.


What is the least common multiple of 18 15?

The Least Common Multiple (LCM) for 18 15 is 90.


What is the greatest common multiple of 90 and 108?

The greatest common FACTOR of 90 and 108 is 18. The LEAST common multiple is 540. There can be no greatest common multiple since double that number will be a greater common multiple.


What is the greatest common factor of 18 15 and 36?

3 is the greatest common factor of 18, 15 and 36.


What is the greatest common multiple of 18 24 30?

The greatest common multiple of any set of integers is infinite.