# Greatest Common Factor

## Find the Greatest Common Factor (GCF) of two numbers

## Last Results

What is the GCF of 7 and 21

What is the GCF of 50 and 90

What is the GCF of 14 and 20

What is the GCF of 39 and 52

What is the GCF of 39 and 42

What is the GCF of 3 and 27

What is the GCF of 72 and 96

What is the GCF of 16 and 19

What is the GCF of 6 and 8

What is the GCF of 9 and 12

What is the GCF of 3 and 12

What is the GCF of 10 and 18

What is the GCF of 15 and 20

What is the GCF of 9 and 27

What is the GCF of 8 and 30

What is the GCF of 4 and 12

What is the GCF of 34 and 38

What is the GCF of 18 and 36

What is the GCF of 6 and 9

What is the GCF of 9 and 25

What is the GCF of 8 and 11

What is the GCF of 6 and 15

What is the GCF of 16 and 42

What is the GCF of 14 and 21

What is the GCF of 4 and 10

What is the GCF of 12 and 30

What is the GCF of 8 and 12

What is the GCF of 9 and 10

What is the GCF of 18 and 45

What is the GCF of 27 and 36

What is the GCF of 22 and 82

What is the GCF of 42 and 282

What is the GCF of 10 and 87

What is the GCF of 66 and 294

What is the GCF of 171 and 190

What is the GCF of 72 and 282

What is the GCF of 168 and 192

What is the GCF of 5 and 30

What is the GCF of 77 and 287

What is the GCF of 18 and 414

What is the GCF of 16 and 71

What is the GCF of 12 and 172

What is the GCF of 72 and 82

What is the GCF of 3 and 53

What is the GCF of 48 and 344

What is the GCF of 56 and 287

What is the GCF of 28 and 61

What is the GCF of 57 and 83

What is the GCF of 30 and 460

What is the GCF of 55 and 90

What is the GCF of 13 and 76

What is the GCF of 10 and 915

What is the GCF of 10 and 38

What is the GCF of 20 and 660

What is the GCF of 3 and 95

What is the GCF of 15 and 185