It is: 3
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 3.
The GCF is 21.
The GCF is 21.
147 = 3 x 7 x 7, 189 = 3 x 3 x 3 x 7 so GCF = 3 x 7 = 21
The GCF is 21.
21
It is 21
Since 21 is a factor of 147, it is automatically the GCF.