Factor Info

ID 138370
Size 600 digits / 1993 bits
Status composite
Value 643631964149527270708183156392638902657567318252911239790063177841095957961062015435448426803567979607779043367504641511943538645986150223989100128556210749924920316175901047643962796699750568117052111075482416128122061802435998532889890879286098079568412802933791649789636644144171868950000643621050622092093108945273834791275302803745801814013221836803355585257477235612757389583496160150261268219819399634628936701088043801916803565889604116424199015575767015407915393546953161799642149451753673774953920046346209570305852329182600008061535096889139568456378370564389301822100405073797129345326413

Factorizations

Primary (ID: 138371) 647085069149724639818371499401 (proven prime)
(ID: 138372) 994663599633453482624893420237005472187130699999958104776990298277632620204088403213134174683525006627585841870762945343800822854705186667393380642894189514009145964339426006234458620749230059182757399584439516562342382504052651600822183271219919210465445404191552254756409391704859953889827435617796632235977253495619375845291413259551392798754533730484248375560552824365342959868197179231271728959740604991476549906690902829770741446437331734427882691440827707944228248013617132020978012498406524396475248652454063346340935880063452450757784551033486935495642228354213 (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.