翻訳と辞書 Words near each other ・ 255th Tunnelling Company ・ 256 ・ 256 (number) ・ 256 BC ・ 256 Walpurga ・ 256-bit ・ 2562 ・ 2562 (musician) ・ 2563 Boyarchuk ・ 256th Battalion, CEF ・ 256th Infantry Brigade Combat Team (United States) ・ 256th Infantry Division (Wehrmacht) ・ 256th Intelligence Squadron ・ 256th Tunnelling Company ・ 257 ・ 257 (number) ・ 257 BC ・ 257 Central Park West ・ 257 Silesia ・ 257-gon ・ 2571 Geisei ・ 2572 Annschnell ・ 25727 Karsonmiller ・ 2575 Bulgaria ・ 2577 Litva ・ 2578 Saint-Exupéry ・ 257th Battalion, CEF ・ 257th Tunnelling Company ・ 258 ・ 258 BC Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク 257 (number) ： ウィキペディア英語版 257 (number) 257 is the natural number between 256 and 258. It is also a prime number. ==In mathematics== 257 is a prime number of the form $2^+1,$ specifically with ''n'' = 3, and therefore a Fermat prime. Thus a regular polygon with 257 sides is constructible with compass and unmarked straightedge. It is currently the second largest known Fermat prime. 〔.〕 It is also a balanced prime, an irregular prime, a prime that is one more than a square, and a Jacobsthal–Lucas number, There are exactly 257 combinatorially distinct convex polyhedra with eight vertices (or polyhedral graphs with eight nodes). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「257 (number)」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.