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The GCF of 4, 6, and 8 is 2.
1. Take the smallest number.
2. Note its factors.
3. Starting with the largest, ask if this factor is also a factor of the other numbers.
4. If it is you have found the gcf.
5. If it is not take the next largest factor.
Repeat steps 3 to 5 until you have found the gcf.
So here: Take 4.2. The factors of 4 are 1,2 & 4.3. Is 4 a factor of 6 and 8? No it is not a factor of 6.4. The next largest is 2. Is it a factor of 6 and 8? Yes. The gcf is therefore 2.
The GCF is 2.
The GCF is 2.
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