Multiple choice general knowledge math & puzzles

identify the Perfect Number from the following

  1. 6128

  2. 8128

  3. 7128

  4. 9128
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B Correct answer
Explanation

A perfect number is equal to the sum of its proper divisors. The first four perfect numbers are 6, 28, 496, and 8128. 8128 is the fourth perfect number, discovered by ancient Greek mathematicians.

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