SSAT Math Question 241: Answer and Explanation
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Question: 241
5. What is the greatest common factor of 64 and 80?
- A. 4
- B. 6
- C. 8
- D. 16
Correct Answer: D
Explanation:
The answer is D
List the factors for each number in pairs: The factors of 64 are 1, 64, 2, 32, 4, 16, and 8. The factors of 80 are 1, 80, 2, 40, 4, 20, 5, 16, 8, and 10. The greatest common factor is 16.