Factor Info

ID 187920
Size 784 digits / 2602 bits
Status composite
Value 1305071264777373582856285413806945569985868879310910747858867331137003302652055621379570259166631250435206911098567317543907606209388208750819142637566080939699709273104451301349381775830400949883577712551096124849548697937269340599347342797224078156602781083788538384222105839241303987047071572423578500225183124660673782641529888975498257875027074343675271953171716669424490117397692580214685985209984687753847531556609307183006497072493483402101969189041269191056445982246709895472025040759839351343469541827206518869103811605032580496292560916689139881665822441532724902525107208201352030878421087020966404239164426882530129967330357056782051792440969039398851768647328196634147780835572112465503259568219561804177320882820474296629402652753571376341357793136724788729477185625591

Factorizations

Primary (ID: 152206) 391061376751449733631793465114261320107553845297768849234837044581521 (proven prime)
(ID: 187921) 3337254309332749652695529345941360592746267339124052991088616454430034665939368486364104174958162431534057152018489377040414822387359653876467571680072110399163738267898691520795892009711901002842044017337984651464427794290367973655081927595936624477188502029259146357039884055377685685829158646933199981748077296810735277554253928773749360431022330014201470133317458704537011084784637149818836718311252675617830927888375009176206112479634410459697243745280124865307531575778727636140940815077830588438429023495628001765178348528012255808885008212200484903365122039154181965895796672437076068366742403009552598276629946553717526982121602730500964253606034315978600088634463300275745054333661868000473198223125425671 (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.