Factor Info

ID 145648
Size 550 digits / 1826 bits
Status composite
Value 4009823994078443747370062148046175656967834599383636302360562061828293682144694371959182445067127359258339587197409577217105805612725579329263559033454382888111607256007370710436151294873088440270473386196950875105639146814063577744206275446732209647658771112986419408783980403445144199145004071668987481866260135302559213966119547039828257069517542413773165305527511832430251000494553121973004563200003417744151731397035974579553116462100799030948874171859410464748103691263022027032234464402725150784719747471670427404213509069711739740833759175969

Factorizations

Primary (ID: 4223) 3754733257489862401973357979128773 (proven prime)
(ID: 181543) 1067938444383427702929551909530017486777920876980567458447317986888956994251247513147723714468738303813171467342556405422231735580441257886149843212739065169753790960965877423294791394755872357492695875319790059086675682351839302524804731998187120085228032221129513991690115561216325283408777686640197399509593839149260499224918179428165698948190912264828313819220967513125846329285142685039736911615594296746567631392297686001026871304355909397337683990644642059891637783930340396815036572523883526751779527077787053 (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.