Factor Info

ID 158289
Size 1179 digits / 3916 bits
Status composite
Value 653909986452933742166775703406111969729360131955576726837132181969485882470963719102509017876972716249928706809512417488496046943203808967158892721119804463284496360977558993789470440984144079891394805573422979418872979757311905881093459861351346894615438518292533690891773319684068165544944221058319557307645698303879820791348843352259039100457753725333995469090035785729282031670740026994238760205285663996205731588447894435211997602405079060499318165117483237870432523191477300955086541624347161018509995625185802579126648208596136759523805641721698118051762053178526012945604890128730985974545994456139332017462050458680721151387205555290207059625737986698255549331480931235199470371508012465589056329908731269918008092427575114067858467895779772938629015397136394193078522910224340048401621345910719018677028930694070874644299155602691996008517630971742814143553905083350508904141470585819329789588341082360318937832902486567580915299781377562005125279668174317252731093608541056725834048899728412288834111542410817753684783658454823802103342397677491446467037338067329346322062777944946978884789892446924045894844506404814662554762293757318779156295044416168693165550159911

Factorizations

Primary (ID: 3983) 12708237958354187384010097 (proven prime)
(ID: 158290) 51455598218717964176242833669601358139668648365553245704543862603846378475263137073197903504500824550767122825097188838488940768981185157593842056540723990134851094531319649315264579406287695257876699193956117694990361053826734228189588956723022103682927576726358656121783531343939289164913409442328887278146778950648205828311500539071912510151379557960870518258027743102165795841254468026293798554958713648202560363905999433608665387025276955477067175953551036064706070476432795665547911271033162807016711942908272278900615323029904552017790386558969725684323558742895859500450004250322366575641626066969832972652426549155259392504750049184647143356948149835940278803439612870104320932325644248557495576362248512765612633211184205236774747521084629787556253036944665753174597653960534165816333748411981854894995302022627511232485220436750100865749571921386662178926492220316241073041975904390498062761151488059604369623314275072594005127290227638376712152048040774114464030317016751723112442809093865229170685762775899645037336557778813093709002592329949215862274646374186463577132775796100723130807160030950212009994622095029295894633133241314399005463 (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.