Factor Info

ID 155707
Size 645 digits / 2141 bits
Status composite
Value 206357215070760063837011717774802159382779148449311420673943783460838203736799648067040562071283285187855060042399580257714943885908678535104701218986582151767028219844407488937571469804219865263125056511444606973261765424452092994425600028092224209682833398150590464317544560007082297737059751912177988133804190289422542371704113554281878526103797472212029101624149302814839777297031042161158290023691973892292706320939449549476316391778797416744516063161539418976410978405110574327368524923268144066640143910768205386583495317581927189060667102475362914584889758019146437964252215541528768966133153344152402421920989194119824543811594124285613

Factorizations

Primary (ID: 154597) 3545592640701962728192781 (proven prime)
(ID: 189640) 58201050143737069550784377663432888639261099375714305337435176630668340717425947829067552781066032586568796906998363070025182424005509843637766618681145462645123073756506020035488291443946832070536904902701151407425900892468779909418925245764809205385762436074636788761834252896508953864392401230125822764823620701287772558938246553149176243335706669541330411465041181654931959340244271628360527866930416646655504999796543613098937469249460440738032002287100840798715355397974048526539132035596034939644453262853634085957110945893519416194888652042647778670739547149686155217664840663151217770895855027860536767579824673 (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.