The GCF of 189, 315, and 441 is: 63
To find the greatest common factor (GCF) of 315 and 189, we need to list the factors of each number. The factors of 315 are 1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, and 315. The factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189. The largest number that appears in both lists is 63, so the GCF of 315 and 189 is 63.
You need at least two numbers to find a GCF.
The GCF is 315.
The GCF is 63.
The GCF is 35.
The GCF is 45.
The GCF is 63.
The GCF is 105.
The GCF is 27.
The GCF is 63.
The GCF is 9.