Factor Info

ID 159182
Size 261 digits / 867 bits
Status composite
Value 538316751807483723960932198174431132804313193269813958286080945878964008752019962456916188399685448103433374827247374687778300230849878430288125142376209723666264914968465655279322212809026902130922817847433566971021806339523763618378351552217440941638411301761

Factorizations

Primary (ID: 158772) 2697556853564347111195898584303651201 (proven prime)
(ID: 192514) 199557147830338693537958836701905056962059635703708594145643897164818414744809708471010730101289830163838381289261150320759293092473978358342392865212553710974521169071407721380118656884348677854372398797511705141483109378561 (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.