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To find common factors, factor each of the two or more given numbers and select the factors common to all. Example: Find the common factors of 54, 36, and 72. Factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54. Factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36. Factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. The common factors of 54, 36, and 72 are 1, 2, 3, 6, 9, and 18. The GCF (Greatest Common Factor) of 54, 36, and 72 is 18.
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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 33 and 40?
The common factors are 1.
What are the common factors of 138?
There are not common factors of 138 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. The factors of 138 are 1, 2, 3, 6, 23, 46, 69, and 138.
