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Since 15 is a factor of 45, and 15's largest factor cannot be larger than itself, the greatest common factor of 15 and 45 is 15.
The greatest common factor of 45 and 105 is 15.
15 and 15000 have a greatest common factor of 15
The greatest common factor of 45 and 225 is 15.The GCF is: 45
The greatest common factor of 45 and 150 is 15.