Factor Info

ID 21311
Size 428 digits / 1420 bits
Status composite
Value 20284133667246260674849566163268387101042948439327121592432933120186905295593151256904671293428047994874330393381767384248278155111060812218648791924219760333959994057678186410898703117972794925593918486831836724064745119158127414359262783496611201844402379386947375640466404211905702437440444216264555689025199057842677824280109322404227797174762942709478705664156832160578627528141843766167421540159441473935641242917261638229

Factorizations

Primary (ID: 16721) 54234164649457019858090786783366331533 (proven prime)
(ID: 29710) 374010253469430745908131148369816997175155162395939114020503222857636679426068904236836568024535363587054095441403076549240109797973005581559409423682115338699080578073939100073576442733695465742319089127638802313383246041774091189070239317983073699770743961193318917290138209380989724308798844841918499489535960609053640459258155384547636966320375673983349912072666368343879593677436475113 (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.