Factor Info

ID 172667
Size 639 digits / 2121 bits
Status composite
Value 153702116621176708628642334521264447516368863253342018260738118311254318601801485087991938604878994731812079126851547030073953002412861874369970086763413388771088153966397384328220598352492867162195497591925333617285396810182242009774163038507924996425122577156037808071556240382362567973207877703981685645798330117525387117238895823207968330200156097767632843689599414278999701383731912727522730113039722492093664489227908817121482941025979566958596795797164960774095342591419715484661317320902201590392196668717465853267923492177323081925434760808837584139593174818605466367729885915075414195959997304156501208506059045476946447346822967

Factorizations

Primary (ID: 171536) 71613389886827945356098340522567739359 (proven prime)
(ID: 172668) 2146276232197291591136540034425428847916485095359027006786314359058380085758915490181359678400500809374425240139669892055586898928968395694254092917236257324229413436807028573176947500591680450032632643007124795279065714278433985145093085446393431240245674058835900957496099431457547520677234932649364555290270405001326186537108387704128179250473077308175247941902746078314862957676647961537624761185978944209856475519061882466521144135528153998585145315063132667169256690414755092750142099839437261690029646477270398663587450924943557772563036425695872491478848903375804810096551044719783452497740713 (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.