Greatest Common Multiple? Infinity.
For example: Multiples of 6 are 6,12,18,24,30,36, ...
Multiples of 18 are 18, 36, 54, 72, ...
Since 18 is a multiple of 6, you will always be able to find another common multiple as you extend the lists out.
Do you mean LCM (Least Common Multiple)? Take a look at the above list, it is 18
DO you mean GCF (Greatest Common Factor)? Since 6 divides 6 and 18, 6 is the GCF.
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GCM(18, 42) = 6
The answer is 6
The greatest common multiple is infinite.
If GCM stands for Greatest Common Multiple, there is no such number. This is because if x is claimed as the GCM then 2x is a common multiple of both 6 and 8 and 2x > x.
The Greatest Common Factor (GCF) is: 18 .