Factor Info

ID 31355
Size 530 digits / 1759 bits
Status composite
Value 16472139565381742406069189735086524571448188684206456947996873978089261173848103443092251967219182624223554078117537613273439877952558420457641542426413786437908785187128795186239895383939698111331017739510474253002509431081373423301726401809284134610499601322985686404924563438288469817780182589900130071264864495684876342207511737012367565117909760909492048416766406823846224444314679992630283521464379039039095590189726267628584341916873212809029008023393328869876770734967089679942958779695211304838932114892147384011849649657

Factorizations

Primary (ID: 17531) 577536900657545968729153477643154919773536822536963130956976981788801 (proven prime)
(ID: 31356) 28521362958154942429260197285044505280214409302566609843454808688047017603856590861105203675911306944302524709829850798902167841616135670755152535989238193341984791057575396112429986179708400984155023374774255324048885011871603971505617446494109792914262651582384798397062553034057504532858309267015018136910264731048279484715761416282170099934653144707447315855188743021487919531869865244714753926565347360921476400983469240005396793881675399339074474313288057 (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.