Factor Info

ID 154220
Size 1197 digits / 3974 bits
Status composite
Value 157520445083509775035294928332877411141703912144401216339812490018508243196358520340579873441097214638623716914102082313355708935992684984408826619070444423601044623037021436140985082284891930464816722358416614980694409857223870890456468779661451665512906892843925367250155155369329276895112804755823282537266737692630611257205434749457708425917485791934385860242734457016672548644034329351471293405175532016808320207729295504688155386128325131757193380742496396076344747089483641113307920161903732320949051627463283079552206204873223798784125622233592574677733151797840504699818164366139527193059056686417502042997712150004057726975062125588107918800472393663145577917080963450088917245921305733433052952718282898529681959391204121223213323022638162098335861618229280274758234829303800389190494776028941073700095575087360932347789482181866749688481157029271234181804635753782939759716710131445079313476519419351960602775744921471862127935441105955878075670410912247789217059532416232241643962331393694819668771199153259620286538104376221404057818727248887795512691404456249539063290962173815205786200968722345509811210932573960520497249444808705985451329824612450980970596819679026040575726652647

Factorizations

Primary (ID: 152150) 500606982978582492107 (proven prime)
(ID: 154221) 314658904968269259272509133393162513963706655205508042909607371706598311205370410406363357799913372745999719084233753848811310110923123793854855852942720345009295612049322348486740364923970684676640966557150855873417445614186517331865118524307229134114250829738779113194805866610059995886706338395064623126953391320746330573779944614101452932659364240674976344362644886477038578494044682691997117927190521786922766531635661025249538699177273759965572821629579304913256759294411942783130512299016201408765336174446436729895178446684749685620425571067388222884793381910077770901872174724886369041532897672129842670831689899793993976864738162594913119282691393773530065483542635045615211671173967512237613198631225552246935415706568648432477006063631118891613004062571822336664864101743290743080493666582875816453544812467974598022440156302685581849372802647516152845209800547648803113453441568791443272304742217523979619598904152504386450230268319031432885667067229447063857709664726012048891323751537117188028788997955971728347807904498598317997624190016619156024877257917889144265299930238920144524043505588666373677874933365741912397728321886563149161275154466344165880971221 (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.