Factor Info

ID 129142
Size 785 digits / 2606 bits
Status composite
Value 15879999964868732382021672693459809903956981121112213849792821557374961723841394243847540605914038134531467013762760342224673130958219280437182119503132798680948784096824338203506198727588841302812245210054536837081913737886091731942712119812793587075083117898788123668338909180665419812320588502631261406494541420247144194885310752172100874400617442535242342987569326607998508741068007280404752751216635259517839479140833467509013333903910482513040813761393283635340707226482909246876276680129311519798978884342311018772889306869996437200517458858759891119653337143918658767611787732628058433620131930100817505663429518358822558364046774552031003103698993434896510739423655573339978949452241273231693428903517844486141483033221083833416473743010922825994544251264794744845377526192969

Factorizations

Primary (ID: 49068) 720688663522244559345441603143196419549279737309273681 (proven prime)
(ID: 129143) 22034480030888657211864998386203666902112516302955092395558475434494847919726392925431999083534855246348069270667384893093149535387873028322225934585120973206931613129594822844284415492984166121301894409260846183812926092790115744053606961878478011886341366121825593366353509026895357720867060795910561272714805578403024929590219464986137578466873860431355789458180377866331487952596477451984440637445672126052863472203177112951934693383037461501777028946769652052637331576294634266230193761839213883722848004318245945579420974016714413690793884098185618245908574974217605263711579454139192464239873211552169264079478418356597407644366454782921970023198336395524551619949113660110125081904613462256059253561515924220290748564854649 (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.