Given the numbers 28 and 91, we need to find the GCF.
Listing Multiples:
To start, let’s list the factors of 28 and 91.
28: 1, 2, 4, 7, 14, 28
91: 1, 7, 13, 91
Evaluation:
The greatest common factor is 7; 7 is the largest number that goes into 28 and 91.