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There cannot be a greatest common factor of just one number. To be common there need to be at least two numbers. If you find all the factors of two or more numbers, and you find some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.
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Earn +20 ptsQ: What is the greatest common factor of 55?
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What is the greatest common factor of 55 and 88?
The greatest common factor of 55 and 88 is 11.
What is the greatest common factor of 15 and 55?
The greatest common factor of 15 and 55 is 5.
What is the greatest common factor of 30 40 and 55?
The greatest common factor of 30,40, and 55 is 5.
What is the greatest common factor of 30 55 and 175?
The greatest common factor of 30 55 and 175 is 5.
What is the greatest common factor of 55 and 99?
The greatest common factor of 55 and 99 is 11.The GCF of 55 and 99 is 11.
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