It is not, since 60 ends in a 0, and 18is an even number, they are not factors of each other.
The GCF of 18, 42 and 60 is 6.
The GCF is 6.
The GCF of 18, 60, and 72 is 6.
6
6
The GCF is 6.
The GCF is 6.
The GCF is 6.
The GCF is 3.
The least common factor of any set of integers is 1.
The least common factor of any set of integers is 1.
5 + 2 = 7