1 and 7
The greatest common factor of 28 and 77 is 7.One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 28 are 1, 2, 4, 7, 14, and 28.The factors of 77 are 1, 7, 11, and 77.The common factors are 1 and 7. Therefore, the greatest common factor is 7.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 28 are 2, 2, and 7.The prime factors of 77 are 7 and 11.The prime factors in common are a single 7, so the greatest common factor is 7.Summary of results:The common factors are 1 and 7.The greatest common factor is 7.
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.
The factors of 28 are: 1, 2, 4, 7, 14, 28 The factors of 77 are: 1, 7, 11, 77 The factors of 91 are: 1, 7, 13, 91
The common factors of 77 and 121 are 1 and 11.
The common factors of 42 and 77 are: 1 and 7
The common factors of 33 and 77 are 1 and 11
Common factors of 77 and 385 are: 1, 7, 11, and 77.
The factors of 77 are 1, 7, 11, 77. For them to be common, they need to be compared to another set of factors.
The factors of 77 are 1, 7, 11, 77. For them to be common, they need to be compared to another set of factors.
14: 1,2,7,14 77: 1,7,11,77 The common factors of 14 and 77 are 1 and 7.
Common factors of 77 and 217 are: 1 and 7.
Common factors of 49 and 77 are: 1 and 7.