Factor Info

ID 157799
Size 681 digits / 2260 bits
Status composite
Value 128383830965742757994446384296742415484954415992588222807865831939264509830220674692330584872674111715955817976187458647632871282298114833799257485506715593432618823914882242452286720307624971344943447452925081807105444187594610088890224698663167233268902793674442737516238522200676882221294436957756381147217083394436303028555082975883858084278900915722310218940042580248517750748105599549556530918597539018224641781306420797274511657022911064487694042227406876286487316776527805503653492310805183714744920647894952500348252641230911206225475652010586816768614312730247089850142297231258654751958305033580191908897411435554386616409131744201999030048720212518005354857587047183611

Factorizations

Primary (ID: 3491) 255375215316698521591 (proven prime)
(ID: 157800) 502726275948627550393122284876974991523513739815399331899743795698131959677244079235018008516158649862036634723827213671913690336277099500620357534503275797134790885700328965753591530764285266890115820852241041059686613772668312848265839174741783999982959551129427648179545582480330809407556323669761369978447508347664849157158786966282721829611549998526010946633472963658648176188681629769719703234109446468870985467903078600146695056053042988181082695099009904132306100143507747714412284186609902724491946083366117534780030948518374742985457453296624121086854589200484758655827815805968269434265545266370269198318477733441124797685143171528941085846313032221 (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.