Factor Info

ID 157680
Size 723 digits / 2400 bits
Status composite
Value 250289687632401729550542353656197492049212480720896264966026121775300794968469207049764538527776010394106932444803696218688913420816118692169477661235512016813580942066255818816551900624966300745860900403357657454408204021419560305791946537953302507273938366333928085673338096616164792807313215833010358270389334473868362042862595846625827740845222710638675152283002580989558273712568903266552107160370473852479736427567147960498239606076246699250017384729865185623159841798383340742214031328919950994676079634893698853693394834328384187182342260141719799580269969900126968171423245774519213228335784767872418743675399635358926847943233705322019882342957671629026624687630884228189250225834026667931900656937325960552919969

Factorizations

Primary (ID: 10566) 6319957642033539607139 (proven prime)
(ID: 157681) 39603064104060566160831166097948556036948836018414674406092350298402183403638012610431146576576283623851420602985598352141254107729738997823721843239134926185716896836722993711414817673507040289943158499365511928805847520356180583805448064397316432771462616137088395466444645209997812632472648309921678151005501481622752560426303929577084204876288850290051079451204379066394066050337875143287702026951745034123708278710033897993720628078881119357877395673203059392807264760553232391395182235339416393260295804802517726278360484035491647997784158081728871653043732803386742676464850790287891102211801061877341810527661533530925222902980367449536763162133602348126461747549142005544843587872820438492971 (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.