math
posted by m
The product of two numbers is 180. The LCM of the two numbers is 60. What is the GCF of the two numbers? How do you know?

Reiny
nice question
the possible 2 numbers were
1 180
2 90
3 60
4 45
5 36
6 30
9 20
12 15
of those only the 3 60 pair has a LCM of 60
the GCF of the pair is 3
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