Factor Info

ID 156663
Size 1149 digits / 3817 bits
Status composite
Value 640701967828591277102635673607252673546411428472802223928670931172659578149639829463484928695579340671268939933366005832094990336389417195569021977962257858976477873375942468896801375269490961899638951190273652511754125976073645525542056724393563699515389512722192288373835933939149271530862555358492049093332755571040939311547494083033013347228564536876848901726212650775269573764477657979214179989051280991361931808152487730429450251264611383142712577273953753256133480135874814237668271206211775725711060892248420436986414198378482137540305882133880631528734718742651738470519844807853438209142707334363398259074793431389064693067514117795798952145676698781735072998867817449938930943382501252846850413143305336067032200741482200282295740714170276512480912376836469746769995990856085631618009679778769758055389525140513330526790581005760192939546171959474214471919371319652716782439606320637890381638575647650918858650189005827057899143041185911496126341704948941933686514022097806520307496174239847671195236914578203038435309951576604108378364255439330464522639471424685557796407044240447201637626651772451040859821927010092980346670920861977763

Factorizations

Primary (ID: 156664) 152796972033094505955789089 (proven prime)
(ID: 156665) 4193158799572420572814864250205631272117634935506708979286213063709115745968864654206006829228911724922528497959230840115199579092779013545333154219970158997426131410398921390075856567311742109328194514409905994968993777137160038852434082503914201336048801464915974374835779361631394684947169471014531914767904250193541752166104612770400701547086745599933918634097934872256000898763475277639581625894448330992659916657776887870881252264506890897706966502275370852702598098023573945744600155412850295436698186102539599833839445693208493171181649905084666780505509443302764688711668003527027256161749994683375755680990700548353684533721283878867499180096456062855640976260791479804661697089502603453099316924173392055552913097087143645814025552358264010330691868582319654823097577160833948716064971020266865436965951977963598618165288063976293835600242560076761248525098986397041833743412268178687191437486077559547179753156028163486085120313543197898879881534482448553851141472054347032760227727823546257185312748078674978363262884689596144992888717467583733525708111006409388477926925191186705008122803964283495459742419267 (composite)

Primary factorization keeps track of the smallest (known) prime factor. Secondary factorizations are old results kept when a new smaller prime factor is found, which occasionally happens with ECM.