The Greatest Common Factor of 20 and 90 is 10, because the factors of 20 are: 20:1,2,4,5,10,20 The factors of 90 are: 90:1,2,3,5,6,9,10,15,18,30,45,90 So, the common factors are 1,2,5,10 10 is the greatest number of them so 10 is the Greatest Common Factor. THE ANSWER IS 10
The greatest common factor is 30.
The GCF is 90.
The greatest common factor is 15.
The greatest factors of any positive integers are the numbers themselves. The greatest common factor of 75 and 90 is 15.
15
30
900
90 and 12's highest common factor is six.
The GCF is 5.
It is: 6
The GCF is 10.