Factor Info

ID 153987
Size 816 digits / 2710 bits
Status composite
Value 496502983695134779708525435307598928776468656857909813660090157050547672478769690330182807083111087375428755614498996781924844952801738183289072787520140761884049101832486039967187414644430012012906893752610153499384780333460327515833630236896719767164661685975254948967943439390965096171539879198579982436006901305408209513003814095868962052419767652008102695588593207319311174377837518031321494251507977901014621275990097720290685605265324375443122807297924461094198223698335054142012040788264145482406910790221264837407669472240805017495593786715102113884946046110303777756440208822550890714350723978864258998992558996910538021563765311559275295233186809016074385675983788153242969904627578328052546875167898840378358951259642886803480754087024757561150437157795841215316684807511752508237483723140697357912835189

Factorizations

Primary (ID: 152114) 66803214075022052730257 (proven prime)
(ID: 153988) 7432321791247150808901852059985489805620584986320397182729419285003164540571684488029301341554118420572884605115501219666725217248838986923168403221699314303598730808297368817165021669542510386145262921295600418401921100028635914263891681084564576546635829125896358459717097120891999162814259796104173745770933494449845627762778047795967797193847250092874042612331206728090415021755368086518815334896058775122325031225526513174708951560838216483970398889598434204127224354747962386676627326580175235218086670173065454343600690477247227306770570305309142236929369022452333687320820060873758947032044290947923540840635931815831859050190302200210036889220562004281264594694958621958749183864619998754448574988411728002255727850938044671462924893460164992711074278888831585355238891847734973722277 (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.