Factor Info

ID 164965
Size 810 digits / 2689 bits
Status composite
Value 256183717755659720679642853951050978283793256528720154362616891751232264151226145907177740421696896030746668571200879905484805940757600669273639228057200188040823780500190177471684705667379721767082904257717960602261485297806844960089461122273770277557758899108231669116031312941600260456047609344449643375316787880479448038584579194006145395859235338643796060205510715934952513730114369195922251299012439289320557490134954306075069582463566427719387901816284652629996066488766987078453564306391193695173729905923905851440937981797674405663943701327943446497246440283992462627321481652260225799860260408016973951374075320819528692066819578808354075806255579986299288952020793303912010004308557931188074679958242991126508078377986688388544527336447728499655520134793642744994369026910436929647989336056123734123

Factorizations

Primary (ID: 163564) 1210458653094709914409 (proven prime)
(ID: 164966) 211641857489877548482785537781070835296548540545166317179832100925516387391697086883630400687212588531489798462860958284884584832100384185020082801785655809540163951733680277929460709453996663060879009781633985006126646109993978428272426605410615713137113712397927839451384652225871052967886157597148789157059246497844961536766881936534065902591623496698303223706114580951504521979116682921926826834004017393323613633625805119339160191271102041816013816806334850592130623614280935498419889171757935491393665914392425262429918507885628258978004808693738112550195536955777567237586587636336354495122491933186949040225619693780581824482918446769412956586297587736634083605729745823760240140441129457521098136619401889884788271886743700519495572161874061157502374192643622183264116079224524147 (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.