Question

what is perfect numbers???

Answer 1

In number theory, a perfect number is a positive integer that is equal to the sum of its proper positive divisors, that is, the sum of its positive divisors excluding the number itself. Equivalently, a perfect number is a number that is half the sum of all of its positive divisors i.e. σ₁ = 2n. 
hence ur answer

Answer 2

HEY MATE....

HERE IS YOUR ANSWER...

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Perfect number is a positive integer that is equal to the sum of its proper divisors...

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# HOPE IT HELPS YOU...