Factor Info

ID 8690
Size 143 digits / 474 bits
Status composite
Value 38657923722483087855365152457351397473891926125467463879736105538667448035775297055770220629626556579801213075323051208769046828517497244500709

Factorizations

Primary (ID: 18028) 257736175658549346017402101729 (proven prime)
(ID: 18540) 149990289968829872203355751082160286262569122027867563216008536410258294336672726198932600974890788819281317663621 (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.