Factor Info

ID 18912
Size 276 digits / 916 bits
Status composite
Value 475595385622579025857443351121446139081777033705849872471702149776286028672658231350076944872023830345433377983046642021366838870244782282371676699848254993060115480432257590545085540326506055267609401481993109942789067713139263447067227692306268958034517687875640159721656513

Factorizations

Primary (ID: 8289) 215399976956807881972039163130016444991137 (proven prime)
(ID: 18913) 2207963957758201922753311826372731754266497065479799930509053624870544327112057441378042669422045641334282411697390775222796183568190644925330941421332830065063313621110134696092761806211340186738815071813223822924413092915273122428449 (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.