Factor Info

ID 28597
Size 817 digits / 2713 bits
Status composite
Value 4236907987223064332698874941562970157311466366748348893676684380734321867459877293576601494999734380037124598322082460349038686990171148822711487848276689906669952352790981550670381618941566708935804758842882415966051394569788476331166958484755746092987127541487735253701692336319388741521620985344706780551908127100730729021439889985347022863024386434038822517419247781576796164296252524984436022437791745232817428865933519684585685209269354388088716822763450409072862399754504349238427376581324322760269616960787851747077699744346620811322801932566498671094507672746896946743179022866188602204326997129073110464890942201626766253050223848593683224484865099598144483379105861669226069939309512388373080537341835863476673604027669975605520360045015520874012269641180841602663733587235205259806983615972616945890805539

Factorizations

Primary (ID: 2156) 909090909090909090909090909091 (proven prime)
(ID: 41521) 4660598785945370765968762435718801113164018466346586906800780938696437652359230364243581566405838174275601135117866348227301971871760703591470849998281628700149771517710932620737591617965708402677614141465096898400859963186499562550137144643391234705967190339381495064607522446480730896639844934372716706362450866721139817430146607313245480062654711095699690108429848011728210309616307808472036639880398098725137540971679667989056213920323776072800420538240889828588116262122674742108446025256597943410084311182655792319259809924440274461336816546591222557211514412575452959762837802897086310983502151546004137731090327790691092663200645819679942514154282500291638867135048453584733248683211299740496883745717546124956019834456387284791500641437021470977967857876819775698786404798860929 (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.