Factor Info

ID 139306
Size 307 digits / 1018 bits
Status composite
Value 1561677132146283885493166047149452670013630762249371722200245606959665082135099342341084472581760140508203373110478406143755278980103926336947890317929905071780761728859060458250674101965318896666152848893667844036533751913450460621480878716338753696284934793245608005743242585469804466976933714895274637119

Factorizations

Primary (ID: 173890) 2853572850064208346290342691280609 (proven prime)
(ID: 174134) 547270812487280474248409512763265942371912060884474180250734814557289325660990311309209830025708648601861675935967342134053745729716246852609191272444963794319341084688527885378227141471024046923271380810363555118317269653642976121878263610416753725349645707559789616591391 (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.