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