Since 130 is a factor of 390, it is automatically the GCF.
7.5
The greatest common factor (GCF) of 312 and 390 is 78.
The GCF is 52.
Since 26 is a factor of 390, it is automatically the GCF.
The GCF is 30.
The GCF is 78.
The GCF of 130 and 390 is 130 itself. Since 130 is a factor of 390, it is automatically the GCF of the set.
390
The GCF is 4.
10
The GCF of 48 and 390 is 6.