Factor Info

ID 20989
Size 444 digits / 1475 bits
Status composite
Value 645446473642124608045770030792149616228805943417711285125896080844835708043324287715463387247345762055549776357247482203365504672509005417471684154702025828987017263213946500709955823302526156939903724889474158139288064350881600859021555823689537586497761185367540113986888967078570708168656970126569122786383388417086746789412614115151032708398845813309152108324417893511711506711145432460460635880383296341401397773699623967181789777569429241

Factorizations

Primary (ID: 20990) 16356242182414641405814291 (proven prime)
(ID: 20991) 39461782629757965210118531543281394587279674854521672644208802299068794615231611437363363053956997443191190935084894899449040329659928451694808107006342146947888731330504097459264731132232643688308368895078074989448593121633643420856567118711814581402948420929181647787678460196134818798198360661757834402240183758680487182518571642085468610469070624670666216916943618474573512034681939061015596317719417950189406224451 (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.