How many positive factors does the number 210 have?

A 8

B 12

C 16

D 24

✓ Correct Answer: Option C

First, find the prime factorization of 210: 210 = 2^1 * 3^1 * 5^1 * 7^1. To find the number of positive factors, add 1 to each exponent and multiply the results: (1+1) * (1+1) * (1+1) * (1+1) = 2 * 2 * 2 * 2 = 16.

💡 Why is C) the correct answer?

The correct answer to the question "How many positive factors does the number 210 have?" is Option C: 16.

The other options — A) 8, B) 12, D) 24 — are incorrect for this GRE Exam Prep question. As explained above: First, find the prime factorization of 210: 210 = 2^1 * 3^1 * 5^1 * 7^1. To find the number of positive factors, add 1 to each exponent and multiply the results: (1+1) * (1+1) * (1+1) * (1+1) = 2 * 2…

📚 About This GRE Exam Prep Practice Question

This 2-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.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free GRE Exam Prep practice test or use flashcards for spaced repetition review.

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How many positive factors does the number 210 have?

✓ Correct Answer: Option C

📚 About This GRE Exam Prep Practice Question

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