Since 21 is a factor of 147, it is automatically the GCF.
GCF(147, 189) = 21.
The GCF of 105 and 147 is 21. Dividing 21 into each of these gives 5 and 7 respectively. These are not further divisible by any number except for 1.
The GCF is 21.
The GCF is 21.
The GCF is 21.
21
It is 21
Since 21 is a factor of 147, it is automatically the GCF.
The GCF is 21.
It is: 3
The greatest GCF factor is 21! And it is common to the two number as well!
The greatest common factor of 63 and 147 is 21.