Factor Info

ID 21589
Size 530 digits / 1759 bits
Status composite
Value 18107774913252855825367694597485730363522784948653250567398366941514650258829581484781581488101450435131717004644486662783391434348716515760362603559498464138044455775285738395938815854958729423647838177733231973035007884525204967537277816691815576422678134979795151948192761503117469023138845875994480675532557601542151642338801042542971423056374055727334278765386087882986997868269373066631282668268130627096621790704248593830663622131811943801407600131672763589148557826711001805548727727654007890687823115151229886348834547637

Factorizations

Primary (ID: 16315) 239976686263858506551 (proven prime)
(ID: 21590) 75456392015277037863961060826458307490069373437619721228935207221683426836607296491987167203634336205991419324072852900438530871774340058006623011579784072173297081486417283107600712273325773181084113947114884251039972819787033690033701212813650245802256626110578348919326132265984750627521442137410435255471770405690543422844562755265273553454610436950212330652009733873909357184742080886644194267247075849801895267666548738383918150121375088222357358376161930994367428822635269008800268967843963161427292787 (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.