The least common factor is 1. (The least common factor of any two or more positive integers is always 1.)
The least common factor of any set of integers is 1.
The least common factor of any set of positive integers is 1.
In order to talk about a common factor, you need to have at least two numbers. Example: 2 is a common factor of 16 and 18, because both 16 and 18 is divisible by 2.
The least common factor of any two (or more) whole numbers is 1. Please note that there is no useful reason to get such a least common factor. Usually you'll want the GREATEST common factor, or the LEAST COMMON MULTIPLE of two or more numbers.
The highest common factor for 18 and 16 is 2.
6 is a factor of 18, so the least common multiple is 18.
The least common factor is: 1
48 is the least common multiple of 3, 16, and 48.
The least common factor of 9, 12 and 18 is 1.
The least common factor is: 1
It is 1 but the highest common factor is 18
The LCM of 16 and 18 is 144. 18x8=144 16x9=144