The LCF is 1.
the lowest common multiple of 28 and 30 is 420.
The lowest common factor is: 1
The lowest common factor of any set of integers is 1.
The lowest common factor of any pair of positive integers is 1. The highest common factor of 15 and 30 is 15
The lowest common factor of any set of positive integers is 1.
The lowest common factor of any set of positive integers is 1.
The lowest common factor of any set of integers is 1.
The least common factor of any set of integers is 1.
The least common factor of any set of integers is 1.
The GCF of 18 and 30 is 6. The least common factor of any set of integers is 1.
The GCF of 12, 28, and 30 is 2
There is no answer. There cannot be a lowest common multiple of a single number, such as 30, because "common multiple" means a multiple that two or more numbers have in common. Likewise, there cannot be a highest common factor of a single number, such as 3, because "common factor" means a factor that two or more numbers have in common.