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There cannot be a greatest common factor (GCF) 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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What are the common factors and greatest common factors of 12 and 15?
The common factors are 1 and 3. The greatest of these is 3.
What are the common factors and the greatest common factors for 15 and 40?
The common factors are: 1, 5 The Greatest Common Factor (GCF) is: 5
What is the greatest common factors of 15 and 98?
The greatest common factor 15 and 98 is 1
What are the common factors and greatest common factor of 15?
There is neither a greatest common factor nor common factors of a single number, such as 15, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor. The factors of 15 are 1, 3, 5, and 15. The prime factors of 15 are 3 and 5. Examples: The common factors of 6 and 15 are 1 and 3; the greatest common factor is 3. The common factors of 15 and 18 are 1 and 3; the greatest common factor is 3. The common factors of 15 and 55 are 1 and 5; the greatest common factor is 5.
What are the greatest common factors of 15 and 1000?
Common factors of 15 and 1,000 are: 1 and 5.
What is the greatest common factor of 15 and 75?
Since 15 is a factor of 75, and 15 is its own largest factor, the greatest common factor must be 15.Another way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 15 are 1, 3, 5, and 15.The factors of 75 are 1, 3, 5, 15, 25, and 75.The common factors are 1, 3, 5, and 15. Therefore, the greatest common factor is 15.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 15 are 3 and 5.The prime factors of 75 are 3, 5, and 5.The prime factors in common are 3 and 5, so the greatest common factor is 3 x 5 = 15.It is 15
Greatest common factors for 60 and 45?
The Greatest Common Factor is 15.
What is the greatest common factor of 15 and 39?
The factors of 15 are 1, 3, 5, and 15. The factors of 39 are 1, 3, 13, and 39. The factors they have in common are 1 and 3. Therefore, the greatest common factor is 3. You can also determine the greatest common factor from their prime factors. The prime factors of 15 are 3 and 5. The prime factors of 39 are 3 and 13. The prime factors they have in common are a single 3, so the greatest common factor is 3.
What is the greatest common factors of 15 and 21?
The greatest common factor of 15 and 21 is 3The factors of 15 are: 1, 3, 5, 15The factors of 21 are: 1, 3, 7, 21The common factors are: 1, 3The Greatest Common Factor (GCF) is: 3
What are the greatest common factors of 15 and 30?
The GCF is 15.
What are the greatest common factors for 15 and 60?
The GCF is 15.
What are the greatest common factors of 15 and 15 and 30?
The GCF is 15.
