It can be. 84 is proper factor of 168, among others.
It can be. 42 is a proper factor of 84.
Yes, 6 is a factor of 84.
3 is a factor of 84.
No, 9 is not a factor of 84.
No, it's a multiple. 84 is a factor of 168.
No, 8 is not a factor of 84.
The greatest factor of any number is itself.
The greatest common factor of 630 , 84 = 42
Since 28 is a factor of 84, it is automatically the GCF.
Since 6 is a factor of 84, it is automatically the GCF of 6 and 84.
a proper factor is a factor.
The greatest common factor of 26 and 84 is 2.