What is the greatest common divisor (GCD) of 72 and 108?
✓ Correct Answer: Option D
Prime factorization: 72 = 2³ × 3² and 108 = 2² × 3³. The GCD is found by taking the lowest power of common prime factors: 2² × 3² = 4 × 9 = 36.
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This 1-level GRE Exam Prep question from the Quantitative Reasoning topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.
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