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| <noinclude>[[Status::Basic definition| ]][[Topic::Number theory| ]]</noinclude> | | <noinclude>[[Status::Basic definition| ]][[Topic::Number theory| ]][[Primary wiki::Number| ]]</noinclude> |
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| '''Perfect number''': A natural number that equals the sum of all its proper (positive) divisors. | | '''Perfect number''': A natural number that equals the sum of all its proper (positive) divisors. |
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| No primary subject wiki entry.
| | Primary subject wiki entry: [[Number:Perfect number]] |
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| Also located at: [[Wikipedia:Perfect number]], [[Mathworld:PerfectNumber]], [[Planetmath:PerfectNumber]] | | Also located at: [[Wikipedia:Perfect number]], [[Mathworld:PerfectNumber]], [[Planetmath:PerfectNumber]] |
Latest revision as of 18:26, 25 April 2009