Factor Info

ID 156178
Size 891 digits / 2958 bits
Status composite
Value 249572240756842167764826299934032291485841787059179889952988888746493980683422996723981471449489534096627874998669669840845579296141652094016966943953284102577208604877934508690635758830223709061750512556734658725623595449487536588811320184690734642676698374561893136102963131271416281528521281626288596824166243405512530277686463011134464993991649585869955191517093296186965688525311514004892741983952645020823983053732968731393487170635725071054543346978379874590952695347815714468158176876721618331399747264023880853220584954122393421864360040715878719974779807635267990566441616289688665527094206773304030280582592253521589756181255346362059076961869933376227526121826542714811672825490210109589474610199334188269955395113464272691075954967713038751756373394694164892376167013550676266250375932429958791487645397456701377933513069035494440637860280025168812135120663628864024882983522851

Factorizations

Primary (ID: 154601) 42481797154433176612759 (proven prime)
(ID: 156179) 5874804209661316626714734694980314784554579940185149356450867556933113761675483398697838355632662163490156379136672133621005507534093045229733005374764305488332332468076630454983140084273844593471860509029070367151931182915463777864413545030455854910850511657191727561335805321475625771169064581122068557895295923009671600287712983850873234029291779014383895226485768858475262471191813594765991343521535083298670394747718110566737282508984374244325573259808793881278458122320949755417142411277146767918480211288258271368882837267314732120595239571919072136205035719615651241963460565685583758220603445949979785047325798765106222797842432532218971294044852974889135777119291651409176089614246733050520562528159092856543424417905703900314165858735396507447031718020275281646699511608948638973102328061796176545717408047185233495218819544806328038942328419333875887784789 (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.