First of all, you're not clear on the meaning of "common factors",
and you need to brush up on the whole concept.
The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72.
You need at least two numbers to find something in common.
The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72. For them to be common, they need to be compared to another set of factors.
The GCF is 2.
The highest common factor of 36 and 72 is 36
Yes, 72 is a factor of 4.
The greatest factor is 72 which is a factor of 72 (though not of 60).
1,2,3,4,6,9,12,18,24,36 and 72
GCF is 15
It is: 50
It is: 9
It is 1
130
The GCF is 2.
The greatest commmon factor of 81 and 67 is 1.
The GCF or greatest common factor of 11 and 5 is 1.
The least common factor of any set of numbers is 1.
42 and 32's highest common factor is two.
72 is not a factor of 18; 18 is a factor of 72.
The highest factor of 72 is 72.