Factor Info

ID 28456
Size 857 digits / 2845 bits
Status composite
Value 21787023398499656527663031584788522923043661136162434797056821276306356258323310989464711740608829831519238948259117082393506525492830838687696921513013872164521436139962093201408142680575260951422204507861524871897861262988075750639454582409563873003104511842602673294456719595641457870300738593314560388258434229031042732687040240200940673057294462949616999611831579699050463212129076958545849522458736872595666281673682862810826452549992845776977134353064749247886133270020723547001943698334255940158338305204928889680823138482785901969267627993451028301193188228818827015819756379290276338956638470798595318543399378823194821751659121447277119156088774489416814469667380652967013119029216841276211173053310221903675763960088223143518645718342826316811493805768778758153525211369901140462125735709499388615340343679543084115918242443881541975746909131733

Factorizations

Primary (ID: 2221) 1090805842068098677837 (proven prime)
(ID: 28457) 19973328486390247317483442019974499318223810161932865231002959998556688240571598526503289574259887772659173164858264989230803778757563766074442570211432711978760035750447789351047311447264370986592081245084806654944098818687481820381892933370064446194366445666033288467410640976913261853275123383209343132266462206881396994957502200261254025457891403405539018484635117509695284901435007191687828042195440833068021388716021176162374072978279401056001823578406140832472496948295339244394158410458563659140887299303020899379508203637822815776812589379015873369649425089996798168031630040980270595552926930362876093425081368634887721598286843439447252862797006361612908533285856449472729712102096306974850943814694376581587380041409007052250321581557472664827700064762527491422802460404904885864482901543157221432040964358350452155620317609 (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.