Factor Info

ID 77371
Size 421 digits / 1396 bits
Status composite
Value 1647200132158407331416801695979182128068203045151241746489847520582000949400213976622796878637885259557414859733254922326111997168500408395094634468137071789861193059845015836448653642491146007836585431651122723388903531219137728585865217026215833768627467558056721382999677779100357009691041573788555696232609319499083913755646141561419288415128326541053762433053676804179653080442644468348060721205248513834532885813897

Factorizations

Primary (ID: 76320) 1208403955885280967690086396288225815411712619213913958370145270052734167496588351779399449684500778674374077026227091769 (proven prime)
(ID: 77372) 1363120440094606235488291036030390107483473886954178294377496020164136990202347470964332782696042818246956634605426288647315057099279008961287852790323541721971913502031636633667493342538476006652547625268429271275461796561212366035753297844588811588675173954867243991121019948785836322053072250076113 (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.