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

Q: What is the greatest common multiple of 9 and 18?

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The common multiple of 4, 9, and 18 is 36.

As 18 = 9 x 2 then 18 is a multiple of 9 so the Least Common Multiple is 18!

90 is the least common multiple of 5, 9, 18, and 3.

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

The greatest common factor (GCF) of 18, 45, and 144 is 9.

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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.

It is: 342

The LCM is 18. The greatest common multiple is infinite.

The LCM of 18 and 45 is 90, and their GCF is 9.

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

The least common multiple of 9 and 18 is 18. Because 18 is a multiple of 9, it is automatically the LCM. You can also find the LCM of a pair of numbers by dividing their product by their GCF. The product of 9 and 18 is 162. The GCF of 9 and 18 is 9. (Because 9 is a factor of 18, it is automatically the greatest common factor of the pair.) So the least common multiple of 9 and 18 is 162/9 = 18. Another strategy for finding the LCM is listing the multiples of each number, then finding the lowest multiple that is in both lists. The multiples of 9 are 9, 18, 27, and so on. The multiples of 18 are 18, 36, 54, and so on. So the LCM of 9 and 18 is 18.

Common Multiples are multiples which are common to both numbers So Multiples of 9 are 9, 18, 27, 36 etc... Multiples of 27 are 27, 54, 81 etc... you can work out the least common multiple as 27 We can see that 9 is a factor of 27 so all multiples of 27 are a common multiple with 9. But as there is no upper limit we can not work out a greatest common multiple as they bigger they get the closer they get to infinity! You tend to work out Greatest Common Factor and Least Common Multiple with regards numbers.

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

The Least Common Multiple (LCM) for 3 9 18 is 18

The GCF of 18 and 63 is 9.The factors of 63 are: 1, 3, 7, 9, 21, & 63The factors of 18 are: 1, 2, 3, 6, 9, & 18The GCF (AKA Greatest Common Factor) is 9.Using prime factorization for 18 you get 2, and two 3's as your primes. For 63 you get 7, and two 3's as your primes. As the two 3's are in common you between both of the numbers, you do 3 multiplied by 3 which is 9. Therefore the gcf for 18, and 63 is 9.The GCF is 9.

Least Common Multiple (LCM) for 9 7 18 is 126

The least common multiple of 18 , 14 , 9 = 126