Factor Info

ID 137821
Size 479 digits / 1591 bits
Status composite
Value 71888125896626242400495581514985603399431309065529837294362252263167648742877565465565711653039761802817365168293262739097433553578861413152880753707374820784335800929811399315075927213775310141974486071530342804204567260283055476387359839530867807480721760406335358581749595337821122433928204282135471645410072776119643458751623086784510062899356312753102793946328467014421302324743024955970631805321225694919511270232637881093703976220818444441991823054635854370185147811339577

Factorizations

Primary (ID: 136490) 447148164091972971050844303563713 (proven prime)
(ID: 172754) 160770258427897121089979119722984875912074492140743516207679275490802199937865334055335388317973952334723297141525038006353726197475755311003433545678579264485237586813807768976607250625764236027610531131695007317489073211857347493385901199514234231415047691659492506193825776958982380281072776481489398229168715468817979834687244453928883431648678863925779304101384921070132460725634683988254723022407311373258451034383718012081156121591478206329 (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.