39 has a couple factors: 1, 3, 13, 39. Its greatest factor would be 39. HOWEVER, it doesn't have a common factor. You need two numbers to find what their greatest common factor is.
For instance: 8 and 12. 8 has 1,2,4,8 and 12 has 1,2,3,4,6,12. The factors they have in common are 2 and 4, with 4 being their GCF.
So 39 cannot have a common factor unless there is another number!
The Greatest Common Factor (GCF) is: 1
The Greatest Common Factor (GCF) is: 13
The greatest or highest common factor is the highest number that divides exactly into two or more numbers. 39: 1, 3, 13, 39 87: 1, 3, 29, 87 The greatest common factor for 39 and 87 is 3.
1
Three.
It is 3
1
Since 13 is a factor of 39, it is automatically the GCF of this problem.
39 and 93's highest common factor is three.
39 and 45's highest common factor is three.
The GCF is 13.
The GCF is 39.