Factor Info

ID 172364
Size 508 digits / 1687 bits
Status composite
Value 4053781007789353967348298533967634457571723121799156144151415846789094246510593920367593297509625532765649467975344580515627516313384360678042251761725174154608779188031875096007694783057689795168179405246511590218649187990316719259330987308309092574758582766122871521315600667767794284802140448857320409486800562991649300492700162252842871154669849980506797452794284106076844739538284197194474858466817936971921645118860795115566397740676630290631055198493712779630951681226442857398632098747306487565940893

Factorizations

Primary (ID: 171637) 2081506019100642583747681101337 (proven prime)
(ID: 172365) 1947523077324980924274751051771679244284324374099609802905770654195157110947679376885641001415195096045648097172790748047791830666458332688229519375941542611609080040309418857038922904891419493510840518341819424084122065048202375302374964028946180146603857085117130255578946675938654794627456295414378059552166217476373897898243618390307748362482442509043400332588528792053769690653457409649077344536335370643844675048320993796237414431327088507809732307316566331621645947178789 (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.