Factor Info

ID 154271
Size 1257 digits / 4174 bits
Status composite
Value 258046068304716290530246897573224288537432294828712517592856162387048142085581952239751735233084717065659383635861385909329824438351382602987495137015761663519732526452330889798212637295004242358258134273414260820752137621056956326962326641471928398343137179150607025944760492348613139746226197968125855247369159268641139348040528700904991847766471083693328693676241844934796520996022206884566272390152019817166900984931582425091797668277289967222458795630459703385000890965779504511777451332813230369114013402615730039067807951888263887137321932756186098095395836701318763886705596634840462052387658880264533128981685739128483100092382512484999641721397364199026127653087400294928464859587393549388085351380287029708245684845902301956026065483191644700762352460851243702947922579789281963707249280275457534288094111452441476135291344864308555387744768949501038847535698080155071676079248949211264597879824636764577740375393329428067161008912590281136459142221507885673671356296641283653366256508043186412014696913252973218667061235752738645726091821413895417168654338857125731330088313615883465117452667889390330706224950891832144602967743897673263462016339351355369516172873746352890398789550969045300302876108713526905225715970616760539251872945783420783

Factorizations

Primary (ID: 152116) 158985017190821853212316286451243405195739789278633 (proven prime)
(ID: 188415) 1623084192864516012400233700714910368478653820023766923778762733663536415127754633868007284470191832593009763708851197626455980187985099656241714014667694548000015935545942481759440745487740528171343641577005862872686232930334459802910806309831066177205274080557980218243421976152849119293557114982273504641290626380583236982597208399761773765788959079422249949883271020912082893479355251473321308666433881129777859354137400876972695568695884464928557794509907111593663064706520436755315547864334867979523728142642004792940001160054225522422989678856495564020429641375841071998677278548259026011323675043946174131269865601651039361658940374983441437944057650375753816478338032124847964211002909699268193622644304605368331142015916000738349842813609904589276170332634394624269845188535254732632660502289814241659031133618996383214487450741817415908536537398789325718290324400421917854821534944134934589557530839582057562664016601448212903806573791170198771091783297322108709690391390225383626221151831923777407463433580290032449737053674852613655931116745265968351868581154278009315832634779376226646782058032549200377876907735757468799500219514723375603486149643937876690414035914300425561922005899023518551 (proven prime)

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.