Factor Info

ID 155371
Size 332 digits / 1101 bits
Status composite
Value 17975935699540264848405215558987783600683222450149603241806474926217642638734947964824434376549865794451574778502151485762877787516857570300944715816278511226869728960703289961337437182648506795201607603480306811021150145010143101167799867197442184626341998458206420458872506850072761332894643901460107162919794902959556819369162667

Factorizations

Primary (ID: 154878) 657178775852071573297 (proven prime)
(ID: 155372) 27353189664765709294334798980182821310050092186563698066057075368823215868198488115428701754647775030072540955918319220542518595256395839865566491310099900898517040048744866589521003835772045990421021384583862326407448674694799385541361410303346290637409856352983376846233645268008871955012431970582805338701211 (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.