3 and 360
You need at least two numbers to find a GCF or an LCM and the LCM of those numbers can never be less than the GCF. 12 and 360 have a GCF of 12 and an LCM of 360. So do 60 and 72.
8 and 360
6 and 360
20 and 100.GCF is 20, and LCM is 100.
the lcm for 60 and 72 is 360.
The pair of numbers whose GCF is 1 and LCM is 36 is 9 and 4. The numbers should be greater than their GCF and less than their LCM.
The GCF of 6 and 10 is 2.
12 and 66
5 and 75
The LCM is 360.
The numbers 12 and 360 fit those criteria.