Factor Info

ID 221517
Size 823 digits / 2732 bits
Status composite
Value 1501700164179548895611936723298129963811555404166952267233592297936434196386370965731795305837704144072158091931549513846950571936048707781104063450272322238383178955481088795912963384876364177409468845558648123407362675341796830760561798618294072768819861280320205525743547852513986843151688566114981471685512446536198750793648862422039250393510394861118148737196379724252068697662744890272624180533616711861426912982111012546481562574168288562776834826003950685621055395541326464894277736058736189081865980139007183246758129225999933402898765321259599932114418032748191519607932930652011142237349213673237983513381374957614208839128694753774996190165474801107859765693744583942206357807597075488376921409587651540856683610567412417583013735821474293667861837606671138750458892721999316691640752579051032602112094131225209

Factorizations

Primary (ID: 221518) 2786472908481601037763885671219 (proven prime)
(ID: 221519) 538925090428333715127100484794036192845680362363238876180316631020591007977125312633408730724979704583263601444091327379732358153087813906395978717530673394242748521157383537141917214317434621481188733148881894948550430313602733256003505398155010353345972429212837283429153588412612474923153166144202637418438343220860980984634225903253762160847468806969348182375665954587826614862138638545259559362668729590685175077049795717707108588919276354211077130067684569517153466602530259304991761930910088951250914672974740973505161161143595936537716333530957248642532569654743629598224393755914339671304848907417172464236671259973447755985457377405089550251354129112940139484091565252224496944866697231772956937859685904993762061848406131816907587647087863053998904383771419120037763161176828642211 (proven prime)

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.