How about: 4 and 5
30 and 60
the two smallest numbers are 49 and 14
4 and 8
7 and 17
They are 4 and 9
When the numbers are relatively prime.
You need at least two numbers to find an LCM. It doesn't matter whether they are prime or composite.
When the numbers are relatively prime.
10,20
3 and 4
10 and 25
7 and 9
How about: 4 and 5
30 and 60
20 and 100.GCF is 20, and LCM is 100.
the two smallest numbers are 49 and 14