Factor Info

ID 155659
Size 648 digits / 2152 bits
Status composite
Value 407363193864501919789490341509534781118912650849371265650172466599491301126780839220802747187733847223338253664528617407923724170226574419153888662221844089740856174808057938424720834943485496919884266266405873958169082685966316843304767202153641131156851394671665145575960695146842620796884663973000478187879678644221847201502080572859678790619348364458137416837246411593956081956476460735869869006723017946629803224562673505480084478356890672539311952073389684866964753514744672911845777726826135203565034904080801119904594854639027345627061770920559430241379163532564495728637809805954533127048160472907834954841972715031698850831808496218309681

Factorizations

Primary (ID: 154712) 1593405992841712852324481273 (proven prime)
(ID: 189597) 255655618024883955833013586213481986232196134157878100090374705649314189970668744039988273343916789345842950874161044494506821425165131988116827617858200412493425012711044415598369191859414072517220565429176205478473267389284219441009339896422012328714799879709041999494208820984873476612232500474720257416440422012700260045045873786236060136723166892658556040799141228765869948279211907903976441129401015977446214872029458840571666783925994433788659264997222075215637081172774521542832607121968731502142470712978803535054323801794885361781342530988756141827072581611397128888723872452810909295206326244534852914445429497 (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.