Factor Info

ID 128354
Size 707 digits / 2346 bits
Status composite
Value 15742824081726595645252141859244298797483641465321999735241956521302551714438217184022974523818100011734374939117293477234902513643385373653491664630436232911656495335194239918366873490428987144332267171414049779867411015185601512358671813088767920559841559369893168501604326363689123340269572822246570110450517617496320025246104022952669565510743892622969062725963325568125233666144649774159678533977227143044314458450061913374156200478161267830948890921563684436802541322329274221178014464673955491930387572740235822796459725732468543090470592752099297470627720626962045608594983033723368098773235733208943737977625650844196905509597231356141681753482350240703924797645415709364827563288813417015324099237

Factorizations

Primary (ID: 258) 923491964053979620044267467977143148287651427604351735846749847194791541 (proven prime)
(ID: 128355) 17047061257163686327127686359814236014662100684922390552541805874289533950345167542805941933267571666241121243646420957571704402135173163327892123026218192966095479159526624293820575366031869301957765692955549897000739852807815965369929506835978344633894554492941595152134370725846530849927460098149340588336847134305771065646422723144996377655436768412033338020282353600948477648858979958271115841461153043408020470813739083357017393414956441397197435775036568740824817079576836860593948312918594486899631787547363598534479120762807970101914839540139472894054996620933362644346887143506615466332264669575126177494159725880976306265457 (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.