Factor Info

ID 143517
Size 292 digits / 968 bits
Status composite
Value 1872537506608376862939902021127490672197818769575308593689643188957318534992132744221461952570700216231561189498982138207575360618236193152547300717988381977175680148140658975120467410221801860471319118068947929181795701581268138033412338240853842934371909260866515379385683829377452105152063

Factorizations

Primary (ID: 179132) 16571733132363756451749835121917 (proven prime)
(ID: 179323) 112995876270262030908347366649169121476450323151624447490116583778733126152069589079958877915021349510204729425832448601645575296946714940391615910288918340053839585588961023122453945010185053588339352352870068407648405837971322221306637234053425079353675016939 (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.