Factor Info

ID 131523
Size 766 digits / 2543 bits
Status composite
Value 1672781038732456339980948203444683799662990248565986248420945632675523568566657839181423220428520707279211706765408559763722669221757493214302362570826877001639069477502718684482344293186056404772509525661873992239352583025989894660500329838304200212495963161183840702226153257025776357508403657961562542912590286437945059737948934464426773499552527803547371397550208816621601363423814315819431964722599183995284636010974716699141300277481123053223587640766417467024255513862383283856987672159072987957926369292063826909696079168721957318293163594594535882366683829088427446078216991354078156348849917760193501342152481295099253290628616550756992213051149192986664436794308770098787613795682638990320679416047170297315209288638136753994394572861992695980562880465953

Factorizations

Primary (ID: 46777) 551852054175400606182338789672545867702072663209967818734735862560481167746716244647252575586591548067591804853881811546538093357938123609 (proven prime)
(ID: 131524) 3031212851480624856682242091908770383201355065464252620101123432539777675931697644664900648896822576624922345392931253292461416941282294297377188393211077582576703945162841527072402310601285956825298178269743195490052765760783735295298268280303031118548665607689257702399046141770382889098619858577604080516356486973872794985967562856856790231848754101108856914988309395345702081137361675288405499047139173560032388706512186024518863804979461767177442360118321443463412826711479471605543915858080633515332988035816824278126737297946952477532968697055731594069209624126704775060543608143308145740133987397075112245337609177169417 (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.