Factor Info

ID 172744
Size 515 digits / 1708 bits
Status composite
Value 12958717073377237499377202331020453429762253307526761715800216017225120977233783557264199200382419323228675176254520834182679654742582117904641407718757593417781397957111947462757670452363990290603156231201400963547238263877616022373227759698635192461367265420275135824036882005289919319689346849637863462957166808544799146409373590707233281818126275448463021105864196774468671593424450571873952345628327753864916027944791363481707912966311314372972887073695427157794999773973438196246493062362862910314543194897851

Factorizations

Primary (ID: 171806) 16421609839855236175153761058814939060027583140415861069205188797320112145284790461915579873285566393489424808395518304906809844446891177587360771058245659805943582250487757331791331089687288157673268798288914752428370838463252519 (composite)
(ID: 172745) 789125865231948196006663670405404573130689230820570225333348885584026947684638198141541005601479587129191094233781754463359532571887043034729218189193638177112233441073904858223574457341484054548260848949995386465777426455927461559997238999266296341074252111751401357551040185754609229 (proven prime)

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.