Factor Info

ID 8721
Size 288 digits / 956 bits
Status composite
Value 508208774166020242646897091255339358731279713479455727022279770766567647442302519401623832410279217157687793102232947639652162478724407839166313774979213341305601469898530455796850507999277689712816591024183158745970395692842709255935469678165185774515070161189564732769312650488955037377

Factorizations

Primary (ID: 18591) 1856688483235393866448784969 (proven prime)
(ID: 18592) 273717846991992538969939332029023829911727122451204257469528169017803471687808234008164209445876857068914344891627368970578404740116664874182308080733824291964076571744326862576538097094358752046082039254675397671850038993004432696692457152721864181267077608633 (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.