They are: 1 3 5 9 15 and 45
How about: 45
There cannot be a greatest common factor (GCF) of just one number. To be common there need to be at least two numbers. If you find all the factors of two or more numbers, and you find some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.
(45,1)(15,3)(9,5)
Traditionally, least to greatest.
1, 3, 5, 9, 15, 45
The least common factor is always one (1), regardless of what the greatest common factor is.
1,3,5,9,15,45
the least common factor is 1. the greatest common factor is 26.The GCF is 26.The LCM is 312.
Least, greatest and only: 1
The Least Common Multiple (LCM) for 45 49 is 2,205.
1 to 48
In the list of common factors, the greatest is the largest, the least is the smallest (which is always 1)