The Greatest Common Factor of 28, 42, 63: 7
If that's 42, 63 and 84, the GCF is 21.
The greatest common factor is 63
Since 9 is a factor of 63, all of its factors are common.
The greatest common factor of the numbers 63 and 15 is 3.
The Greatest Common Factor of 28, 42, 63: 7
3The GCF is: 2121.The GCF is 21.
Answer: 7.
21
21
It is 21
The GCF is 21.
The gcf is 21
It is: 3
1 and 7
The greatest common factor is 21
The GCF is 21.