There is not a greatest common factor of a single number, such as 999, 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 999 are 1, 3, 9, 27, 37, 111, 333, and 999. The prime factors of 999 are 3, 3, 3, and 37. Examples: The greatest common factor of 54 and 999 is 27. The greatest common factor of 185 and 999 is 37. The greatest common factor of 999 and 1001 is 1.
The common factors of 35 and 45 are: 1 and 5
The common factors of 24 and 45 are: 1 and 31 and 3
The factors of 45 are 1, 3, 5, 9, 15, 45. For them to be common, they need to be compared to another set of factors.
Their GCF is 1.The factors of 121 are 1, 11, and 121.The factors of 999 are 1, 3, 9, 27, 37, 111, 333, and 999.The only common factor, and thus the greatest common factor, is 1.
Since 45 is a factor of 900, all of its factors are common.
The common factors of 45 and 54 are: 1, 3, and 9
The common factors of 18 and 45 are 1, 3 and 9.
The common factors of 45 and 108 are: 1, 3 & 9.
Since 45 is a factor of 90, all of its factors are common.
The common factors of 45 and 63 are 1, 3, and 9.
25, 27, and 45 share no common factors aside from 1.