Short answer: There is none.
There is not a least common factor of a single number, such as 348, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The least common factor is the smallest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there is not a least common factor.
Note: The least common factor of two or more positive integers is 1.
There cannot be a common factor of just one number. To be common there need to be at least two numbers.
The greatest common factor of 140 and 348 is 4.
The highest common factor of the numbers 104, 348 and 220 is 4.
The GCF is 6.
It is: 348
The least common multiple of 58 , 12 = 348
The least common factor of any set of numbers is 1.
The least common factor of any set of numbers is 1.
The least common factor of 4 and 9 is is: 1
The greatest factor of 348 is 348 itself. The factors of 348 are: 1, 2, 3, 4, 6, 12, 29, 58, 87, 116, 174, 348 So the greatest factor of 348 is 348.
The least common factor is the smallest factor that two or more numbers have in common. Thus, the least common factor of two numbers is 1. The least common factor of 48 and 116 is 1.
The least common factor is always one (1), regardless of what the greatest common factor is.