Factor Info

ID 187179
Size 591 digits / 1963 bits
Status composite
Value 642547878286175899749226369854701143933672014500560217643202517693872984041049419985073237651946279053185148593424096619216093430465930205255635643249708184864177378467335047227950364236190602579472009161940914316156800695695359105435890498921054772574653019091237540030792411836282510576026791346493175539803849798627332116522455103509152703158773857975900835493629305260548092130546028507341601012311367944030026154697875276351372813468383766503535328776669196251260661697506772339554047872742363684471161699316484895878021325958862100348021862585091712195687806579934941151826649414918713

Factorizations

Primary (ID: 152116) 158985017190821853212316286451243405195739789278633 (proven prime)
(ID: 187180) 4041562466952200029843483699406058022898158405963824702071036259607984396270161934383116568472617870503152571433433041345577736947904662461727422757846704321512869344580837502183452138965423240845240220748724492685068706720599721569153759161226656387251213169369607405625508748386511175373169851568957436012982739900485348610867432261670016620876658198155347610107088493396280588183984820222405180793788831194905290227444294577958796655093495074054134447434715609485288755696292300365538939572771546209226617332875173307492135461370340063761 (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.