Factor Info

ID 197863
Size 840 digits / 2790 bits
Status composite
Value 618887792590289093757891361079792277193139180243858397390540507443288741879515426233542554300365918530336340703002373050692059204154266933206412069723215656562448130292617441876850411227563535722764173882818495067453019971425117519849378177694520545043761533731380046581332715296501587182065750381216913303652113845732845214008293998765410747950298214357810009524344422804133589078783923185934172420174998852297779541840201876427500405316689320200702971593288581409565278291178475393239697513628825466000138486891155018438393332000826506719353493055065730056989960000135449992922210241149717399778564724390273690006223866616835704274763962784373670122297105016643959505425532815235071372415552623451993452726366289586369293472506157405774022948097362421537588389169905426637501820402292691681340351229234754539439793881709019506967041608513

Factorizations

Primary (ID: 17791) 2149457485828738256774266198914177962006617586141234673362470469743 (proven prime)
(ID: 197864) 287927440607960016734629441666203380313210442609629806900843365637983359010037741905625775028625955576191225445089815832852239281599982561224161161755834713531144580452571958827003687824854346265592178228978464631653769268075531853519925267953835330801756299645135801200163033482320262684250880631326272802696043651551608122617607739992116504182597190591423963853949199035700257730614610571349724167934257592889110270854060644341929079724345690081857187720129925670231797135402355187413514880736572827318730293018053690150046613288587270797212912331643190059714865431215930995150471331421551498401288497110231603102559121563922765830600788681051019772351058552658913669997919525421345227475562305655351031986510531294660472063347689529442301420173113759236543840270996973391 (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.