Factor Info

ID 219262
Size 259 digits / 858 bits
Status composite
Value 1611503629620258975071795724361881182318699268754938574144564490142610059197163521971964861009899792149343524192527469089650305393693617686033982031797515720374034055466156133261593829198920881259825967176843259237772232313011912419386363689970549653353164807

Factorizations

Primary (ID: 219263) 3591270399502654528372597 (proven prime)
(ID: 219264) 448728012750984114202556628912563973053217394156772951848004854901947281518248512140961090716557844117563278964670022761730797028254460594232833119946946164867426771539637900333904847335979290896757477740264986569592384224242759441931 (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.