If it's not what You are looking for type in the calculator fields your own values, and You will get the solution.

To find the greatest common factor of two numbers just type them in and get the solution.

To get the Greates Common Factor (GCF) of 81 and 16 we need to factor each value first and then we choose all the copies of factors and multiply them:

81: | 3 | 3 | 3 | 3 | ||||

16: | 2 | 2 | 2 | 2 | ||||

GCF: |

**The Greates Common Factor (GCF) is: 1**

| Greatest Common Factor (GCF) of 17 and 31 | | Greatest Common Factor (GCF) of 20 and 40 | | Greatest Common Factor (GCF) of 9 and 17 | | Greatest Common Factor (GCF) of 9 and 49 | | Greatest Common Factor (GCF) of 3 and 12 | | Greatest Common Factor (GCF) of 38 and 40 | | Greatest Common Factor (GCF) of 60 and 65 | | Greatest Common Factor (GCF) of 50 and 98 | | Greatest Common Factor (GCF) of 10 and 6 | | Greatest Common Factor (GCF) of 10 and 350 | | Greatest Common Factor (GCF) of 7 and 122 | | Greatest Common Factor (GCF) of 116 and 348 | | Greatest Common Factor (GCF) of 32 and 12 | | Greatest Common Factor (GCF) of 120 and 26 | | Greatest Common Factor (GCF) of 3 and 7 | | Greatest Common Factor (GCF) of 14 and 7 | | Greatest Common Factor (GCF) of 24 and 36 | | Greatest Common Factor (GCF) of 0.6 and 3 | | Greatest Common Factor (GCF) of 9 and 45 | | Greatest Common Factor (GCF) of 36 and 9 | | Greatest Common Factor (GCF) of 4 and 24 | | Greatest Common Factor (GCF) of 4 and 20 | | Greatest Common Factor (GCF) of 1 and 5 | | Greatest Common Factor (GCF) of 3 and 97 | | Greatest Common Factor (GCF) of 1 and 9 | | Greatest Common Factor (GCF) of 42 and 64 | | Greatest Common Factor (GCF) of 100 and 1000 | | Greatest Common Factor (GCF) of 1852 and 259 | | Greatest Common Factor (GCF) of 12 and 9 | | Greatest Common Factor (GCF) of 4 and 3 | | Greatest Common Factor (GCF) of 36 and 135 | | Greatest Common Factor (GCF) of 132 and 135 | | Greatest Common Factor (GCF) of 8 and 10 | | Greatest Common Factor (GCF) of 100 and 20 | | Greatest Common Factor (GCF) of 3 and 9 | | Greatest Common Factor (GCF) of 32 and 16 | | Greatest Common Factor (GCF) of 12 and 26 | | Greatest Common Factor (GCF) of 15 and 45 | | Greatest Common Factor (GCF) of 27 and 45 |

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