Factor Info

ID 197172
Size 689 digits / 2287 bits
Status composite
Value 17993751393201585617119095076760252195595952598556822085846373873134848919592236121641057893054250938978004536137688711964972683656764778864453785521619302580350972513310054655351735511370123807194067271570513244492876845328160938650965616547370727072450727245344439285841523836713477224290485205105673678058552850214636553511732843568208245533682225154184628811798163471244238396293913848995269054694993641956475474937343126946215241941673031817260922093866015276483367330382323071118972267409354438101919921906157286910437025051367544475330847142510734694093118837737590386023434848250887110654612710336142848858777465290941833896561679574276879416869734169498698356621139287147241872151

Factorizations

Primary (ID: 197173) 1380657216054032337510756931620947415879490831539978948329 (proven prime)
(ID: 197174) 13032743525310627152995214669676444176108770318046559981127522012812946209278832433197648120343195065601325222383265212000155956315967810265548416389646455121463254243243985599407914623052677647055833539348911623224327780443230127443187521359885762106770437923536496294552949783108330617329440279842671622445248604867843719880450601084348513947930072361940873220514194802840558695273288297895076265709507415409644648456493952410009841152485919793862894751717737637164661932386607658461736025079051118934900318259031002162902151875724594706077673721013761438948669215954537729424148117507550838204262837376289357172811371226974149119 (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.