Factor Info

ID 157576
Size 849 digits / 2820 bits
Status composite
Value 637979768846531961922542670377506520974116835245627933271347728404803140418491140912330056780394839167899304905348955195053233605890996659114698938039622195577245309098505227768223312118445288437010532156550802912086269861072450790560409820204464672059515034997804470913743451892085125361036591975944659438669349731324738740900165935988880331288039292134981131236452447219458933322013052537666549486103550604844059017458046248005536256021340662775999097945511035789321059735883852949011970193447683332824361886469254211556759451062468414858967911757758995577554446634874036105919440502496704062067802196169565741977496518913177973643441422627753823098280876330911310409024623899204922621376136044227897625371504333282011894646651244373012944427013873249013643376752405947191152574159605219237883250675817724375082989506686722065787992152494367904271

Factorizations

Primary (ID: 10474) 4027016481761119763553952463965455549881 (proven prime)
(ID: 191780) 158424921213018403673088060301812977664708760585051258991377798521148942317112219853323396683106129749729091934098871956589780965306682367333921806928109539286185027501393490618992489746234540759246354844684108253260428757005151254105006016767826587365876801932290712539110847984057722540116581942220127458154259517145897254468866566012645520578249281302612971586121028028178387151155426982309767432176559602671041682981152223602392030832999501894808864805261963141002763390857952702400627495522022114239199803525890298787568690540241939528596494422592843436055524821778647814830483831361854351167497059163901125022048408477227442150306333702027369618768679770122749731043304467987552020777618286849692744767633135446429146466526754465901166258807605633228131170858869476585695397032362811635760815957957917191 (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.