# Greatest Common Factor Calculator

Calculate the **greatest common factor (GCF)** or greatest common divisor (gcd). On the GCF calculalation page you can learn how to calculate GCF step by step.

Please type two integer numbers and hit calculate button find the GCF of two numbers.

### GCF Calculations

Here are some examples of GCF calculations.

- GCF of 12 and 18
- GCF of 16 and 24
- GCF of 20 and 28
- GCF of 24 and 36
- GCF of 40 and 48
- GCF of 72 and 81
- GCF of 8 and 27
- GCF of 56 and 71
- GCF of 20 and 35
- GCF of 24 and 68
- GCF of 567 and 3572
- GCF of 12 and 10
- GCF of 64 and 96
- GCF of 48 and 180
- GCF of 45 and 75
- GCF of 9 and 30
- GCF of 24 and 40
- GCF of 28 and 140
- GCF of 6 and 9
- GCF of 50 and 65
- GCF of 14 and 38
- GCF of 28 and 70
- GCF of 10 and 16
- GCF of 32 and 128
- GCF of 12 and 40
- GCF of 12 and 27
- GCF of 135 and 140
- GCF of 12 and 15
- GCF of 25 and 36
- GCF of 84 and 120
- GCF of 18 and 40
- GCF of 15 and 19
- GCF of 2000 and 2005
- GCF of 25 and 50
- GCF of 24 and 144
- GCF of 55 and 77
- GCF of 4 and 11
- GCF of 48 and 72
- GCF of 9 and 17
- GCF of 3 and 9
- GCF of 102 and 117
- GCF of 84 and 100
- GCF of 60 and 60
- GCF of 38 and 57
- GCF of 51 and 62
- GCF of 2 and 86
- GCF of 40 and 28
- GCF of 4 and 15
- GCF of 16 and 21
- GCF of 36 and 63
- GCF of 18 and 25
- GCF of 3 and 13
- GCF of 7 and 15
- GCF of 32 and 88
- GCF of 24 and 56
- GCF of 64 and 74
- GCF of 1221 and 1232
- GCF of 42 and 70
- GCF of 28 and 40
- GCF of 20 and 40
- GCF of 48 and 58
- GCF of 69 and 75
- GCF of 714285 and 999999
- GCF of 21 and 23
- GCF of 42 and 84
- GCF of 13 and 32
- GCF of 16 and 40
- GCF of 272 and 10320
- GCF of 84 and 126

## Recent Comments

we're past gcf now,,,, but def helped me on my tests

i like this, but could you add more numbers? It would be really helpful for 3 number problems. Thanks!

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It’s good but they need to make it for there is 3 number places

This site is..... AWESOME!!!! I will now use this whenEVER I need math help!!! THANK YOU SO MUCH!!!!

Oops. I found the GCF part. Sorry for getting all worked up about that. Probably should have looked around the site a bit more first. Sorry!

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why can't we add anymore numbers.

can we have 3 numbers please? otherwise very helpful

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It was sort of helpful

I’m was really helpful when I couldn’t be bothered to do maths!

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