Everything except 1, 2, 4, 7, 14, 28
It can be. 28 is a factor of 56, among other numbers.
Multiples of 28
14 is a factor of 28. To be a common factor, it must be compared to at least two numbers.
28 and 56 have a GCF of 28.
28 and 28
The highest common factor of the numbers 28, 84 and 91 is 7.
The greatest common factor of the numbers 28, 35 and 63 is 7.
Two numbers that have an LCM of 28 are 14 and 28.
Two numbers that have the greatest common factor of 14 are 28 and 42.
The highest common factor of both numbers is 7
The GCF is 28.
The greatest common factor of the numbers 48 and 28 is 4.