The greatest 6-digit common multiple is 997920.
997920
987,654
987653
987,653
168
Any multiple of 24 is a common multiple of 6 and 8.The common factors of 6 and 8 are 1 and 2 .
The greatest common multiple of any set of integers is infinite.
3 and 36
987,654
987653
987,653
The greatest common factor is six.
Any multiple of 18.
The greatest common factor of 42 and 12 is 6.
3
Answer=18
The greatest common factor is six.
No, it's a common multiple.