Factor Info

ID 148722
Size 843 digits / 2800 bits
Status composite
Value 639597218660763761240043677387584744224671551485233189738645255530670730936273517893970870890257820246434777927016377938751547941938743226455280891158662866056647280030603206929503302847040709135684968697666115677739283496243048048332954390495317434035277127428593249144369110459999076527179779025192527933257646621639040607519406721071500788610979653376478380049679056493219289650204561357408240587155458649045035471758675888497050038682607516118853841212547472472078887174809656102565484721748131999839268833824045731209991309872011045604364929064002094132166562367890584110983307610539469354258798578935666422212265154754100099964318286052877502900545743022705075218642325487836363047792991730658221344731465283677921295484605399591491526195680014204541891703772670555651755014923108843889595939856424749191288422258441666508786087485326339

Factorizations

Primary (ID: 148053) 728938976637247499520258011 (proven prime)
(ID: 183701) 877435888544969140565514627352849593227344592505286457887059049858197851919039143535404779487806217565063452075321819289867666938747784204264150035566553488509600020782399458550087687243154573883760809600494117454478485702020703199914559125595772628781562414547759516845030285542147118973748245255301721171808194028090300653220396030918779099393386006123607545588339006732464655907514843654211680063723156160788352654898911334902421445617706994025953811494211496128234945615250435910065007187811636770724528384049281529334039886157048704930514203783102902882960515721741725180213178249060615233499872217207155534457902875313445248620106639975480360180905304002110982922912078253708759849597605934518801247285056419473021529150178038153867529044778650603577555139165397560526109323028059098771275501631430034576025849 (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.