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Function: driver

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Function: _error_handler

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
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Function: model

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Function: initMenu

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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Function: __construct

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Function: require_once

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Function: get

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
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Function: getComment

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Function: require_once

함께 풀고 싶은 문제
창의력을 기를 수 있는 수학 문제 또는 퍼즐을 내는 곳입니다.
[창의 퍼즐] 완전수의 조건
은총알 2020.01.10 23:34 조회 744
문제 푼 사람 0명
공유하기
페이스북 트위터 카카오톡 카카오스토리 네이버블로그 네이버밴드

완전수는 진약수(자신을 제외한 약수)의 총합이 자신과 같은 수를 말한다. 6, 28 등이 있다. 지금까지 발견된 완전수는 모두 짝수이다. 하지만 그럴 것이라는 것은 추측일 뿐 증명되지는 않았다. 은총알은 완전수가 짝수라는 것을 증명하기 위해 애쓰다가 홀수 중 제곱수는 완전수가 될 수 없다는 것을 발견해냈다.

문제 : 홀수 중 제곱수는 완전수가 될 수 없다는 것을 증명하여라

이 문제 어떠셨나요?

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  •  
    부분해결
    cjmoon Lv.6 2020.02.08 05:54 비밀댓글

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    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
    Line: 202
    Function: mkdir

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
    Line: 236
    Function: getLatexImg

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    Backtrace:

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
    Line: 213
    Function: file_put_contents

    File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
    Line: 236
    Function: getLatexImg

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    Line: 315
    Function: require_once

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    •  
      은총알 Lv.11 2020.02.08 08:04

      아.....제가 생각했던 답은 홀수 중 제곱수가 완전수가 아니라는 걸 증명하는 쉬운 거라서 완전수 공식은 이용하지 않아주셨으면 합니다

      좋아요0

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Line: 18
Function: _error_handler

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 322
Function: model

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 392
Function: getFloatingMyInfo

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
Line: 559
Function: get_footer

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once

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File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/models/ver3/Article_model.php
Line: 19
Function: _error_handler

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 322
Function: model

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/libraries/Common.php
Line: 392
Function: getFloatingMyInfo

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/application/controllers/ver3/Contents.php
Line: 559
Function: get_footer

File: /volume1/web/PhpstormProjects/www_polymath_co_kr/index.php
Line: 315
Function: require_once

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