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 42 and 66 we need to factor each value first and then we choose all the copies of factors and multiply them:

42: | 2 | 3 | 7 | |

66: | 2 | 3 | 11 | |

GCF: | 2 | 3 |

**The Greates Common Factor (GCF) is: 2 x 3 = 6**

| Greatest Common Factor (GCF) of 4 and 1000 | | Greatest Common Factor (GCF) of 25 and 1000 | | Greatest Common Factor (GCF) of 56 and 100 | | Greatest Common Factor (GCF) of 3 and 100 | | Greatest Common Factor (GCF) of 16 and 100 | | Greatest Common Factor (GCF) of 7 and 100 | | Greatest Common Factor (GCF) of 50 and 125 | | Greatest Common Factor (GCF) of 150 and 75 | | Greatest Common Factor (GCF) of 31 and 93 | | Greatest Common Factor (GCF) of 50 and 82 | | Greatest Common Factor (GCF) of 26 and 38 | | Greatest Common Factor (GCF) of 63 and 126 | | Greatest Common Factor (GCF) of 32 and 128 | | Greatest Common Factor (GCF) of 60 and 73 | | Greatest Common Factor (GCF) of 87 and 93 | | Greatest Common Factor (GCF) of 110 and 200 | | Greatest Common Factor (GCF) of 175 and 384 | | Greatest Common Factor (GCF) of 21 and 2 | | Greatest Common Factor (GCF) of 252 and 234 | | Greatest Common Factor (GCF) of 12 and 7 | | Greatest Common Factor (GCF) of 14 and 15 | | Greatest Common Factor (GCF) of 6 and 1 | | Greatest Common Factor (GCF) of 32 and 54 | | Greatest Common Factor (GCF) of 96 and 64 | | Greatest Common Factor (GCF) of 45 and 120 | | Greatest Common Factor (GCF) of 25 and 4 | | Greatest Common Factor (GCF) of 84 and 83 | | Greatest Common Factor (GCF) of 12 and 81 | | Greatest Common Factor (GCF) of 300 and 312 | | Greatest Common Factor (GCF) of 54 and 89 | | Greatest Common Factor (GCF) of 405 and 486 | | Greatest Common Factor (GCF) of 78 and 6 | | Greatest Common Factor (GCF) of 77 and 8 | | Greatest Common Factor (GCF) of 36 and 52 | | Greatest Common Factor (GCF) of 54 and 81 | | Greatest Common Factor (GCF) of 25 and 2 | | Greatest Common Factor (GCF) of 50 and 4 | | Greatest Common Factor (GCF) of 430 and 90 | | Greatest Common Factor (GCF) of 9 and 430 | | Greatest Common Factor (GCF) of 50 and 5 | | Greatest Common Factor (GCF) of 140 and 220 | | Greatest Common Factor (GCF) of 170 and 102 | | Greatest Common Factor (GCF) of 504 and 10 | | Greatest Common Factor (GCF) of 56 and 70 | | Greatest Common Factor (GCF) of 36 and 50 | | Greatest Common Factor (GCF) of 92 and 69 | | Greatest Common Factor (GCF) of 55 and 35 | | Greatest Common Factor (GCF) of 10 and 57 | | Greatest Common Factor (GCF) of 93 and 30 | | Greatest Common Factor (GCF) of 252 and 840 | | Greatest Common Factor (GCF) of 156 and 234 | | Greatest Common Factor (GCF) of 42 and 54 | | Greatest Common Factor (GCF) of 26 and 52 | | Greatest Common Factor (GCF) of 180 and 84 | | Greatest Common Factor (GCF) of 735 and 12 | | Greatest Common Factor (GCF) of 45 and 30 | | Greatest Common Factor (GCF) of 44 and 98 | | Greatest Common Factor (GCF) of 9 and 31 | | Greatest Common Factor (GCF) of 64 and 99 | | Greatest Common Factor (GCF) of 54 and 27 | | Greatest Common Factor (GCF) of 31 and 28 | | Greatest Common Factor (GCF) of 25 and 42 | | Greatest Common Factor (GCF) of 66 and 100 | | Greatest Common Factor (GCF) of 98 and 18 | | Greatest Common Factor (GCF) of 98 and 14 |

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