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

36: | 2 | 2 | 3 | 3 | ||

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

GCF: | 3 | 3 |

**The Greates Common Factor (GCF) is: 3 x 3 = 9**

| Greatest Common Factor (GCF) of 8 and 36 | | Greatest Common Factor (GCF) of 20 and 75 | | Greatest Common Factor (GCF) of 32 and 38 | | Greatest Common Factor (GCF) of 14 and 35 | | Greatest Common Factor (GCF) of 12 and 15 | | Greatest Common Factor (GCF) of 5 and 30 | | Greatest Common Factor (GCF) of 16 and 48 | | Greatest Common Factor (GCF) of 30 and 50 | | Greatest Common Factor (GCF) of 49 and 70 | | Greatest Common Factor (GCF) of 45 and 90 | | Greatest Common Factor (GCF) of 21 and 35 | | Greatest Common Factor (GCF) of 20 and 30 | | Greatest Common Factor (GCF) of 18 and 30 | | Greatest Common Factor (GCF) of 28 and 7 | | Greatest Common Factor (GCF) of 36 and 3 | | Greatest Common Factor (GCF) of 11 and 18 | | Greatest Common Factor (GCF) of 30 and 20 | | Greatest Common Factor (GCF) of 12 and 4 | | Greatest Common Factor (GCF) of 7 and 7 | | Greatest Common Factor (GCF) of 5 and 14 | | Greatest Common Factor (GCF) of 2 and 5 | | Greatest Common Factor (GCF) of 24 and 4 | | Greatest Common Factor (GCF) of 30 and 10 | | Greatest Common Factor (GCF) of 3 and 27 | | Greatest Common Factor (GCF) of 449 and 532 | | Greatest Common Factor (GCF) of 220 and 484 | | Greatest Common Factor (GCF) of 140 and 100 | | Greatest Common Factor (GCF) of 84 and 196 | | Greatest Common Factor (GCF) of 735 and 441 | | Greatest Common Factor (GCF) of 11 and 2 | | Greatest Common Factor (GCF) of 27 and 125 | | Greatest Common Factor (GCF) of 81 and 9 | | Greatest Common Factor (GCF) of 160 and 92 | | Greatest Common Factor (GCF) of 160 and 93 | | Greatest Common Factor (GCF) of 200 and 115 | | Greatest Common Factor (GCF) of 11 and 5 | | Greatest Common Factor (GCF) of 15 and 6 | | Greatest Common Factor (GCF) of 12 and 16 | | Greatest Common Factor (GCF) of 7 and 3 | | Greatest Common Factor (GCF) of 18 and 88 | | Greatest Common Factor (GCF) of 63 and 2 | | Greatest Common Factor (GCF) of 21 and 12 | | Greatest Common Factor (GCF) of 10 and 24 | | Greatest Common Factor (GCF) of 45 and 14 | | Greatest Common Factor (GCF) of 19 and 57 | | Greatest Common Factor (GCF) of 23 and 8 | | Greatest Common Factor (GCF) of 48 and 100 | | Greatest Common Factor (GCF) of 14 and 6 | | Greatest Common Factor (GCF) of 8 and 9 | | Greatest Common Factor (GCF) of 20 and 8 | | Greatest Common Factor (GCF) of 161 and 16 | | Greatest Common Factor (GCF) of 32 and 140 | | Greatest Common Factor (GCF) of 3 and 48 | | Greatest Common Factor (GCF) of 6 and 18 | | Greatest Common Factor (GCF) of 5 and 15 | | Greatest Common Factor (GCF) of 16 and 510 | | Greatest Common Factor (GCF) of 900 and 60 | | Greatest Common Factor (GCF) of 28 and 8 | | Greatest Common Factor (GCF) of 28 and 40 | | Greatest Common Factor (GCF) of 12 and 28 | | Greatest Common Factor (GCF) of 2 and 20 | | Greatest Common Factor (GCF) of 6 and 9 | | Greatest Common Factor (GCF) of 20 and 65 | | Greatest Common Factor (GCF) of 27 and 36 | | Greatest Common Factor (GCF) of 10 and 100 |

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