What is the greatest common factor (GCF) of 28 and 7?

About this MCQ

Medium GMAT item. Correct choice: B. 7.

Correct answer

B. 7

Explanation

7 is the value that answers “What is the greatest common factor (GCF) of 28 and 7” (option B). Option A (35) is a different value from 7. Option C (14) is a different value from 7. Option D (28) is a different value from 7. Keep 7 as the GMAT fact for this stem.

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