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All numbers have factors. Some numbers have some of the same factors as other numbers. These are known as common factors. Write out the lists of factors of the numbers you want to compare. The numbers that appear on both lists are the common factors.
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∙ 11y ago
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Why do you need to calculate common factors?
They are useful in reducing fractions to their simplest forms.
How do you find the greatest common divisor in three numbers?
Calculate their prime factors.
What is the greatest common factor for 21 and 36?
The factors of 21 are 1, 3, 7, and 21. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36. The factors they have in common are 1 and 3, the largest of which is 3, so 3 is the greatest common factor. Or, you can calculate the greatest common factor by looking at the prime factors. The prime factors of 21 are 3 and 7. The prime factors of 36 are 2, 2, 3, and 3. The prime factors they have in common are a single 3, so 3 is the greatest common factor.
What r the 3 numbers that have 2 4 and 8 as factors?
Calculate the least common multiple of the three numbers. Any multiple of that has all those numbers as factors.
Is there a free list of greatest common factors?
There is not a list, but there are MANY website that will calculate them for you.I will put one I like as a link below.
What is the difference between common factors and greatest common factors?
The greatest common factor is the largest of the common factors.
What are common factors of 14?
There are not common factors of 14. Common factors are factors that it and another number share - factors they have in common. A single number cannot have common factors. 14 does have factors. Its factors are 1, 2, 7, and 14. 14 and 16 have common factors of 1 and 2. 14 and 21 have common factors of 1 and 7. 14 and 31 have a common factor of 1 only, which means they are relatively prime. 14 and 70 have common factors of 1, 2, 7, and 14.
What are the common factors of 77?
There are no common factors of 77 because there cannot be common factors without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. Examples: The common factors of 14 and 77 are 1 and 7. The common factors of 66 and 77 are 1 and 11. The common factors of 77 and 154 are 1, 7, 11, and 77.
What are the common factors of 98 and 72?
The common factors are: 1, 2
What are the common factors of numbers?
The factors that they share. Example: 30 and 42 1,2,3,5,6,10,15,30 1,2,3,6,7,14,21,42 1,2,3 and 6 are the common factors, the factors in common.
What are the common factor of 14?
There are no common factors of 14 because there cannot be common factors without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. Examples: Common factors of 3 and 14 are only 1. Common factors of 4 and 14 are 1 and 2. Common factors of 14 and 35 are 1 and 7.
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.
