Factor Info

ID 178312
Size 1037 digits / 3443 bits
Status composite
Value 21137061316653974019879482478711032425079479727161107124357722609958758946558421979048490057872192269923778696537240849004621605618945511304162480512794573973495677629093373489395638921969415136617164011653077486109548526624112193787084662243960863595105934406657087851631771007869120474683168527712229200295401856356466055828170228496024931167210041073507349739714201705043403142744505863793409253444322320016288642829181886613510102781371052613964805906826260946137765120032913854012470821682656033781599252181282638854253625877913065809142651189026621771501518498587009967182991866995361690655499636617140532163054692097691616206017795871413542807764059560040541209333189517813039471376662873159386507738736583232421766127113375607421260401592567390448676827116819391954312057087658134740345073531948246932135998350417989235665718214482086131437505487196796707393952926859191421772899063104932768157630914894020165908820357698383450729928411612026415728980179792908568073560662576993945049737516767520730116421248164277099403862546891

Factorizations

Primary (ID: 29961) 27995513926633433390577999105715784283392657106660062481658867721239899952819876121 (proven prime)
(ID: 178313) 755016013352957429348126438362789609956473659096506024894631250612888094990127271815968268165978296039971075310209474588719466611738971711969175940461696285565347256794991887598091685867006500525607494212269521911843491583581271228288762178934577137302977714091496585924050059949019974074680650250567238040936073054042409378852722093122233930872036908933721041510022544067800524634734232316849058584320066190547365943942729473456091107470010467333082818878931675178087004981046924447803378232486784051922279781872077667951431237704349692127845968991361419065066495684298254085522228818069406652143393139148347599832520731140033022808995702000595093381159899188737248709498158876441014003014008612133865471600911704766966744268271599548114949851113334266572859161579309671286732474617906015948625386195685563670016707936484534560383381984070635908291382079447128376973369393299978967414803554187525830920292639552328342755147565806843029219942715130186371 (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.