Factor Info

ID 161580
Size 269 digits / 892 bits
Status composite
Value 20123693300895136147498011129994700676792458768329585664362224352479892737599493335474968731099511632181493919908479166527673817034138810939889475597924299167851713188734144880710462834454926743787147940548507751281235753275361847013191141001175176754085218505130458261

Factorizations

Primary (ID: 161059) 1296816525740341450729 (proven prime)
(ID: 161581) 15517764387993661592506288333225786691079458967523195657407028479620168626827514002724383224118755039534728685973490646239758456471615602305150901725976821613049327121352624776470191243646433341556836481948534906915706367616876890041117819472527309 (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.