The Greatest Common Factor is 18
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The greatest common factor (GCF) is: 9.
The GCF is 6.
6
The greatest common factor of 90 and 130 is 10.
Since 18 is a factor of 90 and it is the largest factor of itself, the greatest common factor of 18 and 90 is 18.Since 18 is a factor of 90, it is automatically the GCF.