1 and 3
The greatest common factor of 18 and 51 is 3.18 ÷ 3 = 651 ÷ 3 = 17Method: One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 18 are 1, 2, 3, 6, 9, and 18.The factors of 51 are 1, 3, 17, and 51.The common factors are 1 and 3. Therefore, the greatest common factor is 3.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 18 are 2, 3, and 3.The prime factors of 51 are 3 and 17.The prime factors in common are a single 3, so the greatest common factor is 3.The greatest common factor of 51 and 18 is 3
1 and 3
First:The factors of 18 are: 1, 2, 3, 6, 9, 18The factors of 51 are: 1, 3, 17, 51Next:The common factors are: 1, 3Finally:The Greatest Common Factor (GCF) is: 3
The common factors of 21 and 51 are: 1 and 3
The common factors of 51 and 68 are: 1 and 17
The common factors of 51 and 85 are: 1 and 17.
The common factors of 51 and 39 are 1 and 3.
1 and 3 are the common factors of 51 and 15.
51 and 16 share no common factors aside from 1.
Factors of 9: 1, 3, 9Factors of 51: 1, 3, 17, 51Factors of 54: 1, 2, 3, 6, 9, 18, 27, 54GCF (9, 51, 54) = 3
The factors of 51 are 1, 3, 17, 51 For them to be common, they need to be compared to another set of factors.
It depends upon the other number(s) with which 51 has common factors, but it will always be one of the factors of 51, namely 1, 3, 17 or 51.