The GCF of 18, 4 and 27 is 1. I saw this straight away as 4 only has factors of 4, 2 and 1. 4 or 2 don't go into 27. Therefore the GCF has to be 1.
The GCF of 6 18 and 4 is 2. This leaves you with 3, 9 and 2 respectively. There are no more factors in common aside from 1.
The GCF, or greatest common factor, of 18 and 63 would be 9.
The GCF of 9, 12, and 18 is 3.
The GCF of 18 and 9 is 9.Since 9 is a factor of 18, it is automatically the GCF.
The GCF is 9.
The GCF of 18, 4 and 27 is 1. I saw this straight away as 4 only has factors of 4, 2 and 1. 4 or 2 don't go into 27. Therefore the GCF has to be 1.
The GCF is 9.
Since 9 is a factor of 18, it is automatically the GCF.
The GCF is 9.
The GCF is 9.
The GCF is 9.
The GCF is 9.
The GCF is 9.
The GCF of 6 18 and 4 is 2. This leaves you with 3, 9 and 2 respectively. There are no more factors in common aside from 1.
The GCF is 9.
Since 9 is a factor of 18, it is automatically the GCF.