The least common factor is a term often mistakenly given to either the greatest common factor (GCF) or the least common multiple (LCM). This term is not often used because it does not describe a useful relationship between numbers. Since 1 evenly divides all integers, 1 is technically the least common factor for any set of integers.
7 and 12 are relatively prime, which means that they share no factors aside from 1.
Both are 1.
The least common factor of any set of positive integers is 1.
The GCF is 1.
The least common factor of any set of integers is 1.
The least common factor is: 1
Both are 1.
The least common factor of any set of integers is 1.
The factors of 12 are 1, 2, 3, 4, 6, and 12. The factors of 21 are 1, 3, 7, and 21. The common factors are 1 and 3. Therefore, the least common factor (the smallest common factor) is 1.
The least common factor of any set of integers is 1.
The least common factor of any set of positive integers is 1.
The GCF is 1.
The least common factor of any set of integers is 1.
The least common factor of any set of numbers is 1.
The least common factor is: 1
The least common factor is: 1
The greatest common factor can't be a smaller number than the least common factor, but if you meant least common multiple, 7 and 28 have a GCF of 7 and an LCM of 28.
The least common factor of 7 and 14 is 1. The least (lowest) common factor of two positive integers is always 1.