Factor Info

ID 173256
Size 815 digits / 2705 bits
Status composite
Value 17721551200868904110108253307278918338808151024814895248147209151065097062357538370768379369174252178969405155428113778995717337429809665990417136697809483699014471888724195649710965340310325148672028235646604208115691067613279938412667361708278921398689419951472482375501906172289106307862989695448885810719182754462227931264166037264884633779506889403416752602997673764153381574733195202130223894304665147641692064624094830930155746499004039868352674227011069834273293718903372630947281789443059740275801319687614159445340646283432606180288263505193772760732851084931125658176453870015622764283314865852402795704145514317694949751454392134499811603967691934006360977807682610270649855898791845003539812081031802707058657594672291487889317431055006838745850738589404242968284856961149077131882880675222032950321477

Factorizations

Primary (ID: 136592) 1428729544030752754771753792646067505673560575841771424767726554100039853060598667943517550325965402388455417943722596869952631580906342657 (proven prime)
(ID: 173257) 12403712987464796042844012757353551464485433177596770101223467368088860671445748809446229312899956018344066104924932935598967633275625757265850087237477926354281116326309853821476983580470313174208550129584125648516466206137134078677533386053349822555864684716198557344513492591891156841809891662764497858791527732784615193051268602169624700234615778703021544762008766965848723887474035486486711109583469358415696260251651263295031876985796761810270577082094634787301244972254209716370586727839985175755654959589623531934793725417987642417721482563500803376929406373202077402850188604924191750141934076456527266113628428255123110595207603402604973292967050453792959125378184261 (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.