{"image_url":null,"provider_name":"Hatena Blog","blog_title":"koyoweblog log","url":"https://sasashin.hatenadiary.jp/entry/20110923/1316757072","author_url":"https://blog.hatena.ne.jp/sasashin/","height":"190","provider_url":"https://hatena.blog","version":"1.0","type":"rich","published":"2011-09-23 14:51:12","author_name":"sasashin","description":"http://projecteuler.net/index.php?section=problems&id=5 2520 \u306f 1 \u304b\u3089 10 \u306e\u6570\u5b57\u306e\u5168\u3066\u306e\u6574\u6570\u3067\u5272\u308a\u5207\u308c\u308b\u6570\u5b57\u3067\u3042\u308a\u3001\u305d\u306e\u3088\u3046\u306a\u6570\u5b57\u306e\u4e2d\u3067\u306f\u6700\u5c0f\u306e\u5024\u3067\u3042\u308b\u3002 \u3067\u306f\u30011 \u304b\u3089 20 \u307e\u3067\u306e\u6574\u6570\u5168\u3066\u3067\u5272\u308a\u5207\u308c\u308b\u6570\u5b57\u306e\u4e2d\u3067\u6700\u5c0f\u306e\u5024\u306f\u3044\u304f\u3089\u306b\u306a\u308b\u304b\u3002 1\u304b\u308920\u307e\u3067\u306e\u6570\u3092\u7d20\u56e0\u6570\u5206\u89e3\u3057\u3066\u3001\u7d20\u56e0\u6570\u3054\u3068\u306e\u6700\u5927\u306e\u6307\u6570\u3092\u6c42\u3081\u308b\u3002Problem 3 \u3067\u4f5c\u3063\u305f Integer#prime_factorization \u3092\u518d\u5229\u7528\u3002 class Integer def factorization(x) [].tap{|t| (0..Float::INFIN\u2026","width":"100%","categories":["Ruby","Project Euler"],"title":" Problem 5","blog_url":"https://sasashin.hatenadiary.jp/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsasashin.hatenadiary.jp%2Fentry%2F20110923%2F1316757072\" title=\" Problem 5 - koyoweblog log\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}