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Perfect numbers

A perfect number is a number which is equal to the sum of all its divisors. For example 6 is divisable by 1,2,3 and 1 + 2 + 3 = 6. Can you find another perfect number?

Answer

6, 28, 496 and 8128 are the first 4 perfect numbers.

Give this puzzle a mark:
1   2   3   4   5



(5=fantastic, 4=nice, 3=fine, 2=mwah, 1=stupid)

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