The common denominator refers to a multiple that is COMMON to two or more numbers. You have only one number in the question! The common denominator for a number is any non-zero multiple of the number.
A common denominator is 72.
The lowest common multiple, or lowest common denominator, of 18 and 28 is 252.
A common denominator, though not the least, is 5616.
18
1
The common denominator of any two or more whole numbers will always be 1.
The lowest common denominator of any set of whole numbers is 1
The common denominator of any two or more whole numbers will always be 1.
The least common denominator would be 50
The common denominator of any two or more whole numbers will always be 1.
18
There can be no greatest common denominator. If you have a set a numbers whose least common denominator is L then 2*L, 3*L, … are all common denominators. There is no end to that sequence and so no greatest.