the only known numbers, called perfect numer, are 6,28,496 and 8128.
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送交者: steven 于 2008-01-07, 11:42:23:
回答: Yes, it will be in the set if 由 xinku 于 2008-01-07, 11:22:26:
Other than that it, it is a open question whether any more perfect number exits. So how do you know if the above program will ever stop?
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