Factor Info

ID 155973
Size 638 digits / 2118 bits
Status composite
Value 20537909744849850961655521869256249952799635900901343387808446660858368171178864445966128065212337260251477213794707375737265323412154860700597332700072653256006278931769291193989150148983859507978455136405646340796141325648503997405543653676062106335415451497778946249660677189208372087240227747668679852842327588266080170385996471446866567911340543737028945702233377834818602665386354158856811276165641384472099421694969333509481563880481391261339728047827815249613676524956759957389917990516974883135885408221576013000627388236522613014482552958600934348828907268502269563182415669330262854806661675941880077029122286118451180350337367

Factorizations

Primary (ID: 189909) 144404209460779329428094258128367045852578179381 (proven prime)
(ID: 189910) 142225145801085643228157867837063377149334662582982693130483358501579912793800880596914753742716627332560706863953255239234211292014048676166997888084892360887211021786328300403840334072931725073326896342917396711829479749100947721400231138232960219343601749766734028372272210801982801627518595919620029317320342578236267264103719646729877186281778302956064606073332058266515265165829434626799071150938630471251216272597830542279000430157472361804993646777231030961792177694346791142923408580423324180835947748425261966180422608919494236263429474707544867431940006846628426379492145022815707 (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.