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Greatest common factor (GCF) calculator. Is also known as greateset common divisor (GCD).

Find GCF for numbers 8 and 12:

The divisors of 8 are:

8 = 2×2×2

The divisors of 12 are:

12 = 2×2×3

So the common divisors of 8 and 12 are:

gcf = 2×2 = 4

So 8/12 fraction, can be reduced to 2/3:

8 / 12 = (8/4) / (12/4) = 2 / 3

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Users write Now: BluCari • 10 months ago • edited I understood why the calculator gives 2 + 2x2 8 in the example because it counts 2 + 2 first and then only 4x2, as it were, the first 2 + 2 example solves first and then the other does the answer and it turns out 8 I know it's obvious, but some don't.

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