Factor Info

ID 187978
Size 839 digits / 2785 bits
Status composite
Value 17213086003660938215387896625901191756822405259120952861850880810278170895278821065484532182773009976002181874584768135394606520795217697975691945317159826202130607369358052235243798019330932985354180939802595786084467372842853625221861936037372203467955030030792977441853765508119004030606052013343128172735875421480875540227486211842941014390607734614137088049138970828701145276506514162813383579417958634235012690840669984338820685473209887031634982833110018453094224876347880952671514762710024626492199718822838604971033562974264721973733630941484107550216398551819656392633389564278041177946556762726166612641971026763917623106927290110450358670960970101145349393621230482909485536948921555350513621636391419632666579514685129786030535867180710239024979597431074360999141691469525506092208077602134640159989028080124660820766499302609

Factorizations

Primary (ID: 152116) 158985017190821853212316286451243405195739789278633 (proven prime)
(ID: 187979) 108268604852247947319274519947401637158685088417615643769253847870329738457080483971707728525627296629456066543709833398796378622276650436881179214140055319122112279152572690898743371047786334796620956666000964086394233072096322378557445106883905625842690215120720946119180727211074246725210368982527480722601603635583368402838912017125415994923944203951359559610177473136306622996935537570486592164994941535725449613754599168293154085680323325757623487970119943916931703339732389810115139291743686432159072114019978471150253021020745667680153952968175371626083325830208576465858037212701204577551217825041024924299717568635100373716882834191716762855569960908551001979565075796442651152227842380303575356912318169118759239040418819731096301316961798129294063572371383266960946095811632873 (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.