1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306
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The factors of 306 are: 1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306.
1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306 The prime factors are 2, 3, and 17.
The greatest common factor (GCF) of 21 and 306 is 3. To find the GCF, you need to identify the factors of each number. The factors of 21 are 1, 3, 7, and 21, while the factors of 306 are 1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, and 306. The largest number that both 21 and 306 share as a factor is 3, making it the greatest common factor.
There is not a greatest common factor of a single number, such as 306, because there cannot be a greatest 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. The factors of 306 are 1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, and 306. The prime factors of 306 are 2, 3, 3, and 17. Examples: The greatest common factor of 27 and 306 is 9. The greatest common factor of 128 and 306 is 2. The greatest common factor of 306 and 765 is 153.
1 x 306 = 306 2 x 153 = 306 3 x 102 = 306 6 x 51 = 306 9 x 34 = 306 17 x 18 = 306