Answer:
you must have another number in order to figure out the common factor.
Explanation:
Example 26 and 28
Gratest common factor
26 - 1- 2 - 4
28 - 1- 2 - 13
Anwser here is 2 because its on both sides
We found the factors and prime factorization of 28 and 26. The biggest common factor number is the GCF number. So the greatest common factor 28 and 26 is 2.
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