Factor Info

ID 197687
Size 648 digits / 2152 bits
Status composite
Value 556666887429397588853909202640424550911855214792779755493500407351411258370941531708557784233690746887224312941790855199837045734654525546919096159605017898186558873346446944880151986573457774598014941549877330584185935768476407004865042561178933892524892362371149196736809615639229937287606610354739860048023295462719259153220637685741403011215765564864750727390754493488042853253485770177647766617163146779809937288959904992066207250377838669438178686563863859631532416957405084442248768732555777560324872591762444012225182091324865061003225898809369546765358813501282600647890149983127171111069056445948459420939363800454503047324698693767176007

Factorizations

Primary (ID: 17167) 7580956159804488623890305012371373838101141217153351297 (proven prime)
(ID: 197688) 73429640759689331716973893270956357034050527679369808234934137107147449912869840515024304683263511853201969954755424326976354337123682682769884254453027979496126883846320302557636413149058089176864560357478733395321764721134711220685823760756709424451307997639616814674657735804933480557267204910243384794035256615140182213531441160993479573003845591890619887745730083122031969937221144837363803304494702459562027711635693541841305997324972228478570412340371706623249689654105979924885727535899252984810920568744390397782034626115440993655020185012296778217152713912237096699793802375280511431 (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.