A common factor is a number that is a factor of both (or all) the numbers in question. Therefore 55 would be a common factor of 110 and 165 because both of these numbers can be divided by 55.
However, a number by itself (and not in reference to other numbers) cannot be called a common factor. So 55 could be a common factor, but isn't necessarily always one.
The greatest common factor of the numbers 132 and 55 is 11.
Since 5 is a factor of 55, it is automatically the GCF.
The greatest common factor of 28 and 55 is 1
The greatest common factor of 55 and 88 is 11.
The greatest common factor of 15 and 55 is 5.
The greatest common factor of 41 and 55 is 1.
the greatest common factor of 55 and 75 is 5
The common factor of 55 and 81 is 1.
The greatest common factor of 30,40, and 55 is 5.
The Greatest Common Factor (GCF) of 55 and 90 is: 5
The greatest common factor of 55 and 99 is 11.The GCF of 55 and 99 is 11.
The GCF is 5.