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http://www.aygfsteel.com/Anonymous/category/17068.htmlzh-cn Wed, 28 Feb 2007 03:45:11 GMT Wed, 28 Feb 2007 03:45:11 GMT 60 闂: 緇欏畾涓涓瓧絎﹂泦錛屾庢牱浣跨敤鏈灝戠殑瀛楃涓暟鏉ヨ〃紺轟竴涓ぇ鏁? http://www.aygfsteel.com/Anonymous/archive/2006/11/18/81967.html浣氬悕 浣氬悕 Sat, 18 Nov 2006 13:54:00 GMT http://www.aygfsteel.com/Anonymous/archive/2006/11/18/81967.html http://www.aygfsteel.com/Anonymous/comments/81967.html http://www.aygfsteel.com/Anonymous/archive/2006/11/18/81967.html#Feedback 0 http://www.aygfsteel.com/Anonymous/comments/commentRss/81967.html http://www.aygfsteel.com/Anonymous/services/trackbacks/81967.html 闂鎻忚堪錛?br />聽聽聽聽聽聽聽Q1錛毬犅犵粰瀹氬瓧絎﹂泦C ={0錛?錛?錛?錛?錛?錛?錛?錛?錛?錛?錛屸旓紝*錛?錛宆}錛岄噰鐢ㄦ垜浠啛鐭ョ殑綰﹀畾錛氬叾涓紝+錛屸旓紝*錛?錛宆 鍒嗗埆琛ㄧず鍔狅紝鍑忥紝涔橈紝闄わ紝騫傝繍綆楋紝榪愮畻絎︿紭鍏堢駭渚濇鍗囬珮錛岄亣鍒板悓綰ц繍綆楃浠庡彸鍚戝乏榪愮畻錛屾暟瀛椾負(fù)鍗佽繘鍒舵暟銆傞偅涔堬紝浠葷粰鐨勪竴涓紙澶э級(jí)鏁幫紝鎬庝箞鍙嬌鐢ㄥ瓧絎﹂泦C閲岀殑瀛楃鏉ヨ〃紺哄畠錛岀‘淇濊〃杈懼紡瀛楃涓查暱搴︽渶鐭紵 闂瑙i噴錛?br />聽聽聽聽聽聽聽聽涓句緥璇存槑錛屄?strong>9^9 = 3^4=387 420 489錛?/strong> 鍙互鐪嬪嚭琛ㄧず387 420 489 鏈灝戝彧闇3涓瓧絎︺?font size="4">9^9-1=387420 488錛?/strong>鍙互鐪嬪嚭琛ㄧず 387 420 488 鏈灝戝彧闇5涓瓧絎︺?/font> 鐩鎬技闂錛?br />聽聽聽聽聽聽聽Q2錛氱粰瀹氬瓧絎﹂泦B ={0錛?錛?錛屸旓紝*錛?錛宆}錛岄噰鐢ㄤ簩榪涘埗鏁幫紝榪欐椂錛屼換緇欑殑涓涓紙澶э級(jí)鏁幫紝鎬庝箞鍙嬌鐢ㄥ瓧絎﹂泦B閲岀殑瀛楃鏉ヨ〃紺哄畠錛岀‘淇濊〃杈懼紡瀛楃涓查暱搴︽渶鐭紵 聽聽聽聽聽聽聽Q3錛氱粰瀹氬瓧絎﹂泦B+ ={0錛?錛?錛屸旓紝*錛?錛宆錛岋紒}錛屽叾涓紒琛ㄧず闃朵箻榪愮畻錛岃繖鏃舵儏鍐墊庢牱鍛紵 闂璁ㄨ錛?br />聽聽聽聽聽聽聽聽聽璁ㄨ闂Q2鎴朡3浼間箮姣旈棶棰楺1鏇存湁鎰忎箟銆傚亣濡傜粰瀹氱殑鏁癗寰堝ぇ錛岃綆桻2鎴朡3寰堜笉瀹規(guī)槗錛屽洜涓哄洜鏁板垎瑙f湰韜氨鏄竴浠跺緢媯樻墜鐨勪簨錛岃岃繖閲岋紝浜嬪厛鏍規(guī)湰涓嶈兘紜畾鍥犳暟鍒嗚В璺烴鐩稿叧鐨勯偅涓暟鏈濂姐?br />聽聽聽聽聽聽聽 Q2鎴朡3鏄竴涓彲璁$畻鍑芥暟鍚楋紵鏄竴涓掑綊鍑芥暟鍚楋紵鏄惁瀛樺湪綆楁硶紼嬪簭姹傝В錛?br />
]]>鍒濈瓑鏁拌閲岀殑鍑犱釜闂 http://www.aygfsteel.com/Anonymous/archive/2006/11/16/81504.html浣氬悕 浣氬悕 Thu, 16 Nov 2006 05:47:00 GMT http://www.aygfsteel.com/Anonymous/archive/2006/11/16/81504.html http://www.aygfsteel.com/Anonymous/comments/81504.html http://www.aygfsteel.com/Anonymous/archive/2006/11/16/81504.html#Feedback 0 http://www.aygfsteel.com/Anonymous/comments/commentRss/81504.html http://www.aygfsteel.com/Anonymous/services/trackbacks/81504.html 聽聽聽聽聽聽聽聽聽聽 2^n-1鏄礌鏁扮殑蹇呰鏉′歡鏄痭鏄礌鏁幫紝褰㈠2^n-1鐨勭礌鏁扮О涓篗ersenne绱犳暟. 2^p-1濡傛湁绱犲洜瀛?p鏄礌鏁?錛屽叾褰㈠紡蹇呭畾鏄?kp+1. 璇侊細(xì)1錛夎冨療2^n+1錛屽鏋渘 = (2^k)*j騫朵笖j鏄ぇ浜?鐨勫鏁幫紝鍒?br />聽聽聽聽聽聽聽聽聽聽聽聽2^n+1 = (2^(2^k)+1- 1)^j +1錛屽睍寮瀹規(guī)槗鐪嬪嚭2^(2^k)+1 |聽聽2^n+1 聽聽聽 2錛塋et r and s be positive integers, then the polynomial xrs -1 is xs -1 times x s (r -1) + x s (r -2) + ... + x s + 1.聽 So if n is composite (say r . s with 1<s <n ), then 2n -1 is also composite (because it is divisible by 2s -1). 鍛介2聽聽聽聽聽聽瀹岀編鏁板氨鏄偅浜涚湡鍥犲瓙鐨勫拰絳変簬鑷韓鐨勬暟銆傛墍鏈夋槸鍋舵暟鐨勫畬緹庢暟閮藉艦濡?^(n-1)*(2^n-1)錛屽茍涓?2^n-1蹇呴』涓虹礌鏁般傚睘浜庡鏁扮殑瀹岀編鏁拌嚦浠婃湭鑳界‘瀹氥?br /> 鍛介3聽聽 聽聽 璁綼>=2錛宐>=2,聽 a涓巄浜掔礌錛屽嵆瀛樺湪鏁存暟x錛寉婊¤凍ax+by=1.鍒欙細(xì) 1錛変竴瀹氬瓨鍦ㄦ鏁存暟s<a錛屼嬌寰梐|bs -1 2錛夊鏋渟0 鏄弧瓚?錛夊紡鐨勬渶灝忔鏁存暟錛屽垯a|bh -1(h鏄嚜鐒舵暟)鐨勫厖瑕佹潯浠舵槸s0 |h 2錛塧鏁撮櫎bn 鍚庯紝n=1錛?錛?...., 鎵鍙兘鍙栧埌鐨勪笉鍚岄潪璐熶綑鏁版濂芥槸s0 涓?br /> 璐歸┈灝忓畾鐞喡犅?聽 1)璁緋鏄礌鏁幫紝鍒欏浠繪剰姝f暣鏁癮錛宲|ap -a 2)榪涗竴姝ュ鏋減涓嶆暣闄錛屽垯 p|ap-1 -1錛屽瓨鍦╠>1鏄弧瓚?br />聽聽聽 聽聽聽 聽聽聽 聽聽聽 聽聽聽 聽聽聽 聽 聽聽 聽聽 聽聽聽 鐨勬渶灝忔鏁存暟錛屽茍涓攄|p-1 璇佹硶涓褰掔撼娉曪細(xì)鍥犱負(fù)p|C(p,j)錛岃繖閲孋(p,j)鏄粍鍚堟暟錛?<j<p. 聽聽聽 聽聽 聽聽 聽聽 鎵浠?a+1)p -(a+1)=ap -a+p*A 鍛介4聽聽聽聽聽聽聽 聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽聽 ]]> 鍏充簬璐ㄥ掓暟鐨勫驚鐜妭闀垮害鐨勪袱涓懡棰?/title> http://www.aygfsteel.com/Anonymous/archive/2006/10/27/77651.html浣氬悕 浣氬悕 Fri, 27 Oct 2006 06:58:00 GMT http://www.aygfsteel.com/Anonymous/archive/2006/10/27/77651.html http://www.aygfsteel.com/Anonymous/comments/77651.html http://www.aygfsteel.com/Anonymous/archive/2006/10/27/77651.html#Feedback 0 http://www.aygfsteel.com/Anonymous/comments/commentRss/77651.html http://www.aygfsteel.com/Anonymous/services/trackbacks/77651.html 鍛介1聽聽聽 璐ㄦ暟p鐨勫掓暟鐨勫驚鐜妭闀垮害L鏁撮櫎p錛?錛屽嵆L聽| p錛? 鍛介2聽聽聽聽n涓轟竴涓ぇ浜?鐨勮嚜鐒舵暟錛屽鏋?/n鐨勫驚鐜妭鐨勯暱搴︼紳n-1錛屽垯n涓鴻川鏁?br /> 浠婂ぉ鐪嬪埌榪欎袱涓懡棰橈紝鎰熻閮藉緢鑷劧錛岃瘉鏄庡簲璇ヤ笉闅懼惂
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