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 16 and 81 we need to factor each value first and then we choose all the copies of factors and multiply them:

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

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

GCF: |

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

| Greatest Common Factor (GCF) of 52 and 39 | | Greatest Common Factor (GCF) of 3 and 13 | | Greatest Common Factor (GCF) of 20 and 25 | | Greatest Common Factor (GCF) of 9 and 6 | | Greatest Common Factor (GCF) of 11 and 8 | | Greatest Common Factor (GCF) of 11 and 6 | | Greatest Common Factor (GCF) of 25 and 10 | | Greatest Common Factor (GCF) of 34 and 2 | | Greatest Common Factor (GCF) of 11 and 3 | | Greatest Common Factor (GCF) of 17 and 5 | | Greatest Common Factor (GCF) of 24 and 30 | | Greatest Common Factor (GCF) of 56 and 15 | | Greatest Common Factor (GCF) of 4 and 2 | | Greatest Common Factor (GCF) of 15 and 10 | | Greatest Common Factor (GCF) of 55 and 24 | | Greatest Common Factor (GCF) of 25 and 9 | | Greatest Common Factor (GCF) of 54 and 47 | | Greatest Common Factor (GCF) of 36 and 48 | | Greatest Common Factor (GCF) of 36 and 12 | | Greatest Common Factor (GCF) of 20 and 91 | | Greatest Common Factor (GCF) of 5 and 13 | | Greatest Common Factor (GCF) of 4 and 7 | | Greatest Common Factor (GCF) of 9 and 11 | | Greatest Common Factor (GCF) of 23 and 12 | | Greatest Common Factor (GCF) of 24 and 100 | | Greatest Common Factor (GCF) of 87 and 87 | | Greatest Common Factor (GCF) of 49 and 49 | | Greatest Common Factor (GCF) of 5 and 7 | | Greatest Common Factor (GCF) of 240 and 90 | | Greatest Common Factor (GCF) of 8 and 18 | | Greatest Common Factor (GCF) of 180 and 240 | | Greatest Common Factor (GCF) of 16 and 30 | | Greatest Common Factor (GCF) of 14 and 32 | | Greatest Common Factor (GCF) of 26 and 13 | | Greatest Common Factor (GCF) of 8 and 4 | | Greatest Common Factor (GCF) of 45 and 25 | | Greatest Common Factor (GCF) of 11 and 88 | | Greatest Common Factor (GCF) of 34 and 35 | | Greatest Common Factor (GCF) of 49 and 36 | | Greatest Common Factor (GCF) of 15 and 54 | | Greatest Common Factor (GCF) of 2 and 8 | | Greatest Common Factor (GCF) of 42 and 56 | | Greatest Common Factor (GCF) of 60 and 25 | | Greatest Common Factor (GCF) of 36 and 25 | | Greatest Common Factor (GCF) of 36 and 60 | | Greatest Common Factor (GCF) of 64 and 12 | | Greatest Common Factor (GCF) of 66 and 25 | | Greatest Common Factor (GCF) of 34 and 51 | | Greatest Common Factor (GCF) of 16 and 36 | | Greatest Common Factor (GCF) of 77 and 21 | | Greatest Common Factor (GCF) of 100 and 50 | | Greatest Common Factor (GCF) of 39 and 52 | | Greatest Common Factor (GCF) of 75 and 42 | | Greatest Common Factor (GCF) of 49 and 98 | | Greatest Common Factor (GCF) of 54 and 6 | | Greatest Common Factor (GCF) of 65 and 32 | | Greatest Common Factor (GCF) of 40 and 22 | | Greatest Common Factor (GCF) of 8 and 27 | | Greatest Common Factor (GCF) of 24 and 27 | | Greatest Common Factor (GCF) of 75 and 15 | | Greatest Common Factor (GCF) of 30 and 45 | | Greatest Common Factor (GCF) of 26 and 48 | | Greatest Common Factor (GCF) of 9 and 27 | | Greatest Common Factor (GCF) of 605 and 204 | | Greatest Common Factor (GCF) of 12 and 45 |

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