{"author_url":"https://blog.hatena.ne.jp/kazu-yamamoto/","width":"100%","title":"7\u306e\u500d\u6570","published":"2008-11-28 14:01:52","provider_name":"Hatena Blog","image_url":null,"url":"https://kazu-yamamoto.hatenablog.jp/entry/20081128/1227848512","version":"1.0","categories":["\u6570\u5b66"],"blog_title":"\u3042\u3069\u3051\u306a\u3044\u8a71","provider_url":"https://hatena.blog","description":"\u5148\u65e5\u30017\u306e\u500d\u6570\u306e\u898b\u5206\u3051\u65b9\u3092\u7fd2\u3063\u305f\u306e\u3067\u3001\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u66f8\u3044\u3066\u304a\u304d\u307e\u3059\u3002 \u4efb\u610f\u306e\u6570\u5b57\u304c\u300110a + b \u3068\u8868\u73fe\u3067\u304d\u308b\u3068\u304d\u3001a - 2b \u304c 0 (mod 7) \u3068\u306a\u308b\u5834\u5408\u306b\u9650\u308a\u3001\u305d\u306e\u6570\u306f7\u306e\u500d\u6570\u3067\u3042\u308b\u3002 \u3044\u304f\u3064\u304b\u3001\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002 21 \u2192 2 - 2 \u00d7 1 = 0 35 \u2192 3 - 2 \u00d7 5 = -7 \u2192 0 133 \u2192 13 - 2 * 3 = 7 \u2192 0 182 \u2192 18 - 2 * 2 = 14 \u2192 1 - 2 \u00d7 4 = -7 \u2192 0 \u548c\u7530\u5148\u751f\u306e\u89e3\u6790 10a + b = 0 (mod 7)\u304c\u6210\u308a\u7acb\u3064\u3068\u3059\u308b\u3002\u307e\u305a\u4e21\u8fba\u3092 5 \u500d\u3059\u308b\u3002(\u53f3\u8fba\u306f0\u306e\u307e\u307e\u3067\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f) 50a + 5b =\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkazu-yamamoto.hatenablog.jp%2Fentry%2F20081128%2F1227848512\" title=\"7\u306e\u500d\u6570 - \u3042\u3069\u3051\u306a\u3044\u8a71\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://kazu-yamamoto.hatenablog.jp/","author_name":"kazu-yamamoto","type":"rich","height":"190"}