Page 107 New factors received from December 12, 2007 to February 29, 2008 5563 6, 329- c150 9121864969966391515391635599843611190251309549200752213601. p92 Irvine+Littin gnfs 5564 10, 239- c228 383155477843726029783939406113226468701730728790004161. c174 NFSNET" 5565 10, 239- c174 128780300340244872385688233345188210841783983757299260103530718169486826135819357. p94 NFSNET" 5566 6, 305- c155 24506226188880631899928133376464081634967825718604821. p103 Raman snfs 5567 10, 301- c227 1141240390081433457327371568501745249133720840602413587. p173 Dodson ECMNET 5568 7, 361+ c177 5907090586313286536313560574827695694485218120865194167761. p119 Dodson ECMNET 5569 12, 283- c295 574415003477912224164865138245789464170840631670479. c244 Nakano+Imaishi+Kawashima+Ohno ECMNET 5570 2,1137- c164 658902026875796428567829503940349573542148080739049. p114 Dodson ECMNET 5571 11, 266+ c165 10993852263070164321789121586575067454580033672280805433. p110 Dodson ECMNET 5572 10, 278+ c213 538978365796508304569088931293097537674917585678041. c162 Dodson ECMNET 5573 10, 333- c172 2391225903192434229494639627847286709185128947978708401. c118 Dodson ECMNET 5574 7, 366+ c151 713483057839775626177378111971655537227563305944989779135833832322797. p82 Davis+Womack snfs 5575 10, 333- c118 378910432397861194405369041242690342635541471617136043289. p61 Zimmermann gnfs 5576 2,1069- c306 37473613084215372416028665821312617743022228898297. c256 Dodson ECMNET 5577 10, 375+ c149 4709825349852110182615878875374419529306990314325041101342026868334001. p80 Irvine gnfs 5578 2, 787- c204 171124793552074153093621463907993111755630713094272377046079303. p142 NFSNET" 5579 7, 281- c165 41601158252896546668861917466611604127922008421733517. p112 Dodson ECMNET 5580 2,1177- c306 355693251295001123842782330386351058608227381732783. c255 Dodson ECMNET 5581 7, 269- c224 4462060605403381961780411332028022754534242152003773412732171224503049883657394827. p142 Kruppa+Franke/Kleinjung+CWI snfs 5582 2,1139+ c301 67287821449693070372895357014126417403959115084746851. c248 Dodson ECMNET 5583 6, 389+ c293 2982779594065696609685195700602798752702318576538431. c242 Imaishi, Kawashima, Nakano and Ohno ECMNET 5584 3, 533- c202 150998319124240638554051708078408319882230731449000713669057713. p139 Kruppa+Franke/Kleinjung+Papadopoulos snfs 5585 2,1574L c156 615100774114599454091701722950906510937760594592980904866755214402721. p87 Leyland gnfs 5586 10, 381- c181 82548590511975869997227448819484483748713764399174373. p128 Dodson ECMNET 5587 2,1954M c294 639290688796013570647966059083967057010003673137. c246 Dodson ECMNET 5588 7, 305+ c164 1714461844893235406404454794496407041883618781938375128571. p107 Zimmermann ECMNET 5589 5, 725L c165 296269439535747252943894468070363938094487279043019269906635271651. p99 Zimmermann ECMNET 5590 2, 787+ c169 1729064962458961255320417417955691339162974743882218922830411737050563040937. p93 NFSNET" 5591 6, 299- c155 159997585500087414157621168325510579411294626795380708213053. p96 Silverman snfs 5592 2,2294M c287 197087841468408363943070319736054669952436200177. p240 Dodson ECMNET 5593 2,2290M c272 9514847808507361230737323841865127257466051227182921. p220 Dodson ECMNET 5594 10, 239+ c221 2846390188891241030645451773087716881978563746547069042984813032147999326242449. p142 NFSNET" snfs 5595 5, 775M c151 437196366910510383784330130064531099102550031749594637519374746810892901. p80 Davis+Womack gnfs 5596 7, 387- c154 4583142681916056752995023804494031799489400087334962946866717203441543. p84 Womack snfs 5597 10, 283- c266 42608585710315399434791772854102387791567329009634088723. c211 CWI/Ekkelkamp ECMNET 5598 12, 229- c242 5614625825187525959903363633922994959000986456830889529904105379. p178 CWI snfs