- A4
- B6
- C8
- D10
Step-by-Step Solution
Factors of 6 other than 6 are 1, 2, 3 and 1 + 2 + 3 = 6, so 6 is a perfect number.
Answer: B) 6
Which of these numbers is a perfect number (equal to the sum of its factors other than itself)?
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