Factor Info

ID 20515
Size 287 digits / 953 bits
Status composite
Value 39909533501386136249246760721702028643743867752506124940180490611616166575040389710253939168653912586475581958394868492261887755551330480618436430865789580008200365928616290764480476511397078200406503193815909180786507488667930974543994064648219341118798738813780157577708842750677906191

Factorizations

Primary (ID: 6731) 250805666433416532678429525124977090318975999001796354124089 (proven prime)
(ID: 28682) 159125326269218292206836948517220991935513896114440969198874258052031635254629165267321574385992345948590289546392760211629711940153585191258055094274664941331015572828313158807011716671243430400630843673761271180670578422736519 (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.