Factor Info

ID 28308
Size 747 digits / 2481 bits
Status composite
Value 665092184353765085737501843708390935163622035485881789649467363250068154858476826740253313619532957693632753946771228695595056362030943452052216704357968402131066976271628471972939167948220636766332501447087817457774425455618387313207286381251973592267539216437940381874894618688626668421173091458720420965989715187804557640376648819763204188303953100891324541796273100029761677240344061806078965274858442439252631987043651253983391492391912046731393718587986851031458727328353308978076257152124894225789214940049720638003542476390697880946908577599314744901139473130828940977824785486580000408778550134837335632984819166886464740467082963266157705278962817504809707272182788834664199929742667707655153614129486186888398162590956707110697979322433

Factorizations

Primary (ID: 2180) 5078554966026315671444089 (proven prime)
(ID: 28309) 130960910889611263771150491554419565382236959914673732842548187147590718548410807741977941727116399214444880115271325818333876375052142259687339395685553954830736443397381943545938304618248213920843227729593516023465446797923696509630408142708197869827495908726080388153701874783285596314151154062047792625952151609443274179069691310931448313635332279070966812769268405955588987917361590737267831002490455922099979328311297140912601218721943780039924814111178122754302908858924119093282685586640649866676646902603673537967746732042314942138326199818800763137543347577941920102029379389713207540822853726112447420432396990461167421975740411040500801263323699418036925131818427442060500978454097995381186874341407576850252297 (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.