Factor Info

ID 144461
Size 647 digits / 2148 bits
Status composite
Value 21428766607478257901409502428054702513368606137465726655952240144772008544893086795268010436509898608668790599916386463937523112641056290712516559873142275267730039978072482629959494035643761435666457772862929760842950465085536158904796274886121964923330533783117404608904733151065120309508258502013056782213824412498466670736876100578360940179092048328640748144004416150590700542884531933370218947694964419494238704835447271997654932584009576303503607216424346948646325067429889519083409124524851025982349538318788228454090048415641665115615022890649415753803860618252365205669480113810627322612987725992115975612429410803896649404304372166483873

Factorizations

Primary (ID: 143254) 107248611633411791617 (proven prime)
(ID: 144462) 199804606149348305751220746394659269336993884111601956167532787093467931863752995698121847842035411396372074817665385146410175007758818275879457309872407058920152757177814110418995558938891226280003260045614117228518319256758308526493869795378446313539181106768979745978512543455037747527986460877773417029189178760213979530241715559734306064029857317343357535741614338318065953553304311743508058447753996081359301308531211965566318380666577945469599191957335413547267327751719582954960260813442303761885196960202558375523066686136820139698823342455498054163950878936855712966705319390550547062657577644848966502767650826871969 (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.