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One way to determine the greatest common factor is to find all the factors of the numbers and compare them.
The factors of 20 are 1, 2, 4, 5, 10, and 20.
The factors of 55 are 1, 5, 11, and 55.
The common factors are 1 and 5. Therefore, the greatest common factor is 5.
The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.
The prime factors of 20 are 2, 2, and 5.
The prime factors of 55 are 5 and 11.
The prime factors in common are a single 5, so the greatest common factor is 5.
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What is the greatest common factor of 10 20 35 and 55?
The GCF of 10, 20, 35, and 55 is 5.
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 55 and 88?
The greatest common factor of 55 and 88 is 11.
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.
