Multiple choice general knowledge math & puzzles Which of the below is a Perfect Number 0 1 2 3 6 12 Reveal answer Fill a bubble to check yourself E Correct answer Explanation A perfect number is a positive integer that is equal to the sum of its proper divisors. For 6, the divisors are 1, 2, and 3, and 1 + 2 + 3 = 6. Other options like 12 (1+2+3+4+6=16) do not satisfy this condition.