Factor Info

ID 121653
Size 557 digits / 1849 bits
Status composite
Value 21445393103619156135673490103555349202948523904911193029161721688683097881572168014019500167010806018148228910162118218731478050635114660760555057337417474290164469540724374296601238052060921515187521937627778813056252628748747976007135773293988366216821522981078999100527388258729087043412465392223489493208020107717749118755276046463962037517404836521737619232238415393451299475356972734009922640157407728884259253069975838893936444295989801290199125153117465313357203016709431944498015607423952437620013861158279287195590449137835805530186550093584375061

Factorizations

Primary (ID: 83) 20569928772342752084634853420271392820560402848605171521 (proven prime)
(ID: 121654) 1042560396828087586646842233398658337964315711881546804179760322801908443096616544475448594115126732149290818215660651311766870106171976815330825864980032960411911381932264951758367993477291846182812771934710819993395773848542948993259074754412656647582824204658570045171209088041240430455749748995419787013001005702647752238044295631142614077537958377097959344731017762453229922935341877622121430534397499304655931457265981732550976553269559799049596258613743174384432057670033003649419686502176918741 (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.