Factor Info

ID 190157
Size 638 digits / 2118 bits
Status composite
Value 21428802017629521754254724936019896514786504708795614342441776817618454281727134037590694280865360803489508958037372569283706251213521288291091892621415259206743786180465894706947120491392618495286215280132218044699201513029855719451141127886933835215868213566761219349379473639233861097407231935147999461706514736889603386199869843497183582701362015073013888900305421311987482435561885673397692278706816652754665632848088322596759945074960358363269578040253569241768158756172215844364222907774512193733048079829620950474238797422757305993577686270145500801423751401837255705036913615472415702959903573461210718063360590759054831772320553

Factorizations

Primary (ID: 188743) 85912184821599706072006943100214874792000179599875431278393402841 (proven prime)
(ID: 190158) 249426807875126649295421510874452964199928126486561444245501327466234356107939427586694080387485293479534057436403625039564220160262454307593826006018963277365583151422520205680070268194330195999592711092376809908819441017899065556264747553666319576044119003659542516705994808569214302566649993826956670676022735158396225673560150206198463566056630031508605447048140772769405828759054291781937900428921672573254422458729837378076989626112936423390551374531913813068733836199176018545912677034028599783835021066843284684847891271886086980039772128825582822551322825332794833 (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.