The highest common factor of 18 and 130 is 2. This leaves you with 9 and 65 respectively after division. There are no further factors aside from 1, which doesn't change anything further.
Chat with our AI personalities
Since 130 is a factor of 390, it is automatically the GCF.
The GCF is 2.
The GCF of 130 and 390 is 130 itself. Since 130 is a factor of 390, it is automatically the GCF of the set.
The GCF is 18.
The GCF of 18 and 36 is 18.