The GCF is 10.
The GCF is 45.
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
10
GCF of 36 and 90 is 18
2 and 4
2 5 10
The GCF is 10.
The common factors of 90 and 720 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45 and 90.
The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90. For them to be common, they need to be compared to another set of factors.
They have the prime factors 2 and 5 in common.
1, 2, 5 and 10.
1, 2, 5 and 10