Factor Info

ID 155566
Size 491 digits / 1629 bits
Status composite
Value 20855193399059490891091995519863580604024657945963221192669323203347830080060656597332363729786978725182468655249563817913563674745124899806383174180175152601019996217565200475356740963830825308387451571096118396545115902057158374525553021468299632535450484055205597294316759238446198874377578665237076027507530691661192888249425744884976414725197051736705824090757720203525880314647730174183282732647681899411669195849323318729550000168366709392419171446355215076699220414885718691517416457

Factorizations

Primary (ID: 154616) 152490484148901066281 (proven prime)
(ID: 155567) 136763900485063712435442434716161322556976771311304924238205771546722017476614852798059813134267553255811171505746727258837421401181627653210870150231544244372051433644464717748034865163551640331671783982950603436751331484871554173712843515381598056903236721161931236792132686882261740644585428546001791612206624390196469317111683247628401913857149553695135140565681686543161996080598052455954496844433168247132854957743917282430315577414187319623973905002991167968451297 (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.