6 and 9 are one pair of numbers with a common multiple of 18. Another pair are 9 and 18.
They are 7 and 5
Yes. Any pair of numbers has an infinite number of common multiples.
When one of the numbers is a multiple of the other, the greater is the LCM and the lesser is the GCF of that set.
54 and 108 is one possibility.
4 and 9.
One possible pair of numbers is 1 and 60.
1 and 3m is one possible pair.
1 and 20 is one possible pair.
The least common multiple is one of the numbers when one of the numbers is a multiple of the other.
Because any multiple cam be multiplied. A common multiple of 3 and 6 is 12. That means that every multiple of 12 also has 3 and 6 as factors.
Only if one of the numbers is a multiple of the other.