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There is really no such thing as a "greatest common multiple". Once you find the least common multiple (LCM) 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 numbers have 90 as a greatest common multiple?

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The set of (90,90) has a GCF and an LCM of 90.The set of (-90,-90) has a GCF and an LCM of 90.

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

This cannot be answered because the common multiples of any two numbers are infinite.The greatest common multiple is an infinite number and not very practical.The GCF is 6.The LCM is 90.

Ummmmm. Your question has no answer as it is written. Either you want the greatest common factor or the least common multiple. Here is both. 36 factors to [2 2 3 3] 90 factors to [2 3 3 5] Common factors are [2 3 3] = 18 ◄ LCM is the product of both numbers divided by the GCF. 36 * 90 / 18 = 180 ◄

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

Related questions

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

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.

The set of (90,90) has a GCF and an LCM of 90.The set of (-90,-90) has a GCF and an LCM of 90.

The least common multiple of the numbers 210 and 90 is 630.

=The two numbers to this question are 40 and 50.=

There is no highest common multiple of any two or more numbers, for whatever multiple is stated, their LOWEST common multiple can be added to get an even higher common multiple. However, there is a highest common FACTOR (HCF) which is the largest positive number that divides all the numbers without a remainder, and a LOWEST common multiple (LCM) which is the smallest number into which all the numbers divide without a remainder. For 108, 54, 90: hcf(108, 54, 90) = 18 lcm(108, 54, 90) = 540

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

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

It is infinity but the lowest common multiple of 90 and 70 is 630

45 and 10

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

This cannot be answered because the common multiples of any two numbers are infinite.The greatest common multiple is an infinite number and not very practical.The GCF is 6.The LCM is 90.