Best Answer

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.

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

Write your answer...

Submit

Still have questions?

Continue Learning about Math & Arithmetic

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

This cannot be answered because the common multiples of any two or more numbers are infinite.

The greatest common factor is 2 and the least common multiple is also 2.

The greatest common multiple of 10 and 18 is infinite.However, I suspect you want either:the greatest common factor of 10 and 18 which is the largest number which divides both 10 and 18 and is 2; orthe lowest common multiple of 10 and 18 which is smallest number into which both 10 and 18 divide (ie the smallest number which is a multiple of both 10 and 18) and is 90

6

Related questions

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.

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

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.

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).

The lowest common multiple of 15 and 18 is 90

The Greatest Common Divisor of 15, 18 3.

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

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

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

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.

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

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