There is no "greatest common multiple" of any two numbers. Whatever their product is, it can be multiplied by any positive integer to yield an even greater number that is also a multiple of the first two. Thus, the number of multiples is infinite.
The greatest common multiple of any set of numbers is infinite. The greatest common multiple of any set of numbers will never be one.
The greatest common multiple of any two numbers is infinite.
There is no greatest common multiple of these numbers... or indeed of any pair of numbers. Once you get a common multiple, you can multiply that by any integer, as large as you want, to get a larger common multiple.
The greatest common multiple of any set of integers is infinite.
The greatest common multiple of any set of integers is infinite.
Never. The greatest common multiple of any two numbers is infinite.
The greatest common multiple of any set of numbers is infinite.
The greatest common multiple of any set of numbers is infinite.
The greatest common multiple of any set of numbers is infinite.
The greatest common multiple of any set of numbers is infinite.
There is no such thing as a greatest common multiple for any numbers. There is a greatest common divisor and that is 2.
The greatest common multiple of any two numbers is infinite.