Factor Info

ID 137606
Size 601 digits / 1995 bits
Status composite
Value 2158807081691225490397587752078165145527729328262203597303649565796345279852164080477405383261831159768917393939337131364784541982026346858662396079655979116620920359608969423316783076674745229805699595863322700723545932208242595603059792556866092086672865967053296737809159534048227692555348390021352123755843026377474482643910520277260738213011126203179421520837686857409416757196910095820609610952690203850464986854264498177828518644821967633993510920753888296177365015237613718805742824661954520461884401238640376975066701699577743813253628576036787038697943447920645493236549560765682262304466099

Factorizations

Primary (ID: 171706) 164692376808370084817354928779566219 (proven prime)
(ID: 172525) 13108117834762522124975140941519168668198037305775585152840620892806190722999431525469852433829260609512786297323925565402067630720850267487663995948011155075263772451161719237403352262504679381215960811424958863599849937489713170886315086478614267565186955438651107200342042338800862743766334532890809553715335132221530423413840614953045203001829099752468166786329541619530690858437617730541136819994919543862958219135243997098911465475078077821240146800949338385936117336498285677542806422331227704192569061672831453941764907409890610872567224190002486396468614521 (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.