Factor Info

ID 131272
Size 807 digits / 2680 bits
Status composite
Value 516579263620224865174410244367723436931345463948436333428761448707223245421576861609676005244081003044807746629463335914385980945502056671230557114275218340398611441629673335651573180267452648121433969978948244670647579232843906334710354247954647243482265653311211756485733926719784442300896398228307203736135973976025995837902557203300351213840797451975476765910564122998645565842458925985767176746886584440598499128683906071725554210921454011618519682018265362197206494277336967527023988635419267065920822092775108030962975944453906161279187365505806813436298055452666245771358773123320734209690536098272315505243929287512637536674244854421105659625960652177802940100134215210203806899298782411210941999754691092229883944798261547157534507587781733681942951066688745348343720964671374552760504358037305203

Factorizations

Primary (ID: 9612) 2121127700656264401736409782758747057751 (proven prime)
(ID: 131273) 243539916743531418411904926920131664765028915378758744029102092168090065446744020810923019402994840337582985229389180929712685522481616572878275111388645787382530108772165951233435269245922621534194867488217615050568071917138216193662232249347112340632925915157865741001510447200400626240986292586294762658467048133529261804971748464158881924160107601419490934363058408235286045759541367211281405273026868943673890789301964294363639472029620394058108124323274313274619115689798699175553113197591061401465662776932569315882734537703440186080916484341389114575425557025229610515604086528280895237798250813836494734143901851514026987219939964733686533883888602159768347383664432710493465038841824237408121020423806099717474978112926831077002956009696131366111263304144453 (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.