ISEE Word Problems Question 138: Answer and Explanation
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Question: 138
7. The set of common factors of 36 and 64 is
- A. {1, 2, 4}
- B. {1, 2, 3, 4}
- C. {1, 2, 4, 6, 18}
- D. {1, 2, 3, 4, 6}
Correct Answer: A
Explanation:
The correct answer is (A). The set of factors of 36 is: {1, 2, 3, 4, 6, 9, 12, 18, 36}.
The set of factors of 64 is: {1, 2, 4, 8, 16, 32, 64}.
The set of common factors is:
{1, 2, 4}.