what are factors they make no sense whats a GCF and whats the factors for 28 and 77 13 52 91 56 70 64 96 112 88 121 24 36 60 18 63

Factors are numbers that can be multiplied together to get another number. For example, the factors of 28 are 1, 2, 4, 7, 14, and 28. The factors of 77 are 1, 7, 11, and 77.

The Greatest Common Factor (GCF) is the largest factor that two or more numbers have in common. To find the GCF, you can list the factors of each number and find the largest one that appears in both lists.

Let's find the factors for the numbers you mentioned:

For 28: The factors are 1, 2, 4, 7, 14, and 28.
For 77: The factors are 1, 7, 11, and 77.
For 13: The factors are 1 and 13.
For 52: The factors are 1, 2, 4, 13, 26, and 52.
For 91: The factors are 1, 7, 13, and 91.
For 56: The factors are 1, 2, 4, 7, 8, 14, 28, and 56.
For 70: The factors are 1, 2, 5, 7, 10, 14, 35, and 70.
For 64: The factors are 1, 2, 4, 8, 16, 32, and 64.
For 96: The factors are 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, and 96.
For 112: The factors are 1, 2, 4, 7, 8, 14, 16, 28, 56, and 112.
For 88: The factors are 1, 2, 4, 8, 11, 22, 44, and 88.
For 121: The factors are 1, 11, and 121.
For 24: The factors are 1, 2, 3, 4, 6, 8, 12, and 24.
For 36: The factors are 1, 2, 3, 4, 6, 9, 12, 18, and 36.
For 60: The factors are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, and 60.
For 18: The factors are 1, 2, 3, 6, 9, and 18.
For 63: The factors are 1, 3, 7, 9, 21, and 63.

To find the GCF of two numbers, compare their factors and find the largest number that they have in common. For example, the GCF of 28 and 77 is 7, since that's the largest number that appears in both lists.