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It helps to reduce fractions.

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Q: Why do you have to find the greatest common factor?
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Do you do a factor rainbow for greatest common factor?

You do a factor rainbow to find a prime factorization. You compare prime factorizations to find a greatest common factor.


Find the greatest common factor of 84 and 72?

The Greatest Common Factor (GCF) is: 12


How do you find the greatest common factor of 154 and 418?

The greatest common factor (GCF) is 2.


Find the greatest common factor of 16 and 20?

The greatest common factor (GCF) is 4.


How do you find the greatest common factor of 3 and 5?

The only factor they have in common is 1. It has to be the greatest.


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The greatest common factor (GCF) is 3.


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The greatest common factor (GCF) is 5.


Find a greatest common factor of 144?

There is no Greatest Common Factor (GCF) for a single number. The Greatest Common Factor (GCF) is the largest factor common to two or more given numbers.


How do you find the greatest common factor of 35 and 56?

greatest common factor of 35 and 56 = 7


Find the Greatest Common Factor of 45 and 65?

The Greatest Common Factor of 45, 65 is 5.


Find the greatest common factor of 8a3b2 and 12ab4?

the greatest common factor of 8a3b2 and 12ab4 is 24a3b4


Find the greatest common factor of 30 45 50?

The greatest common factor (GCF) is 5.