Short answer: There are none. There is neither a greatest common factor nor common factors of a single number, such as ??, 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 44 are 1, 2, 4, 11, 22, and 44. Examples: The common factors of 11 and 44 are 1 and 11; the greatest common factor is 11. The common factors of 18 and 44 are 1 and 2; the greatest common factor is 2. The common factors of 44 and 55 are 1 and 11; the greatest common factor is 11. The common factors of 44 and 66 are 1, 2, 11, and 22; the greatest common factor is 22. The common factors of 44 and 132 are 1, 2, 4, 11, 22, and 44; the greatest common factor is 44. The common factors of 44 and 136 are 1, 2, and 4; the greatest common factor is 4.
There is not a greatest common factor of 44 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 factors of 44 are 1, 2, 4, 11, 22, and 44.
The common factors of 24 and 26 are: 1 and 2
The factors of 26 are 26, 13, 2 and 1
Well, honey, the common factors of 13 and 26 are 1 and 13. That's it, plain and simple. Not much to work with there, but hey, at least you got your answer.
The common factors of 26 and 44 are: 1 and 2.
Factors of 26: 1, 2, 13, 26 Factors of 44: 1, 2, 4, 11, 22, 44 The common factors are 1 and 2
The factors of 44 are: 1, 2, 4, 11, 22, 44 The factors of 52 are: 1, 2, 4, 13, 26, 52 The factors common to both are: 1, 2, 4
The common factors of 44 and 70 are: 1 and 2
The Common Factors of 42 and 44 are 1, 2
The common factors of 44 and 121 are: 1 and 11
The common factors of 18 and 44 are 1 and 2.
The common factors of 44 and 132 are 1, 2, 4, 11, 22 and 44.
44 and 65 share no common factors aside from 1.
The common factors of 32 and 44 are: 1, 2, and 4
The common factors of 42 and 44 are 1 and 2.
Factors of 28... 1,2,4,7,14,28 Factors of 44... 1,2,4,11,22,44 Common factors therefore are 1,2 & 4