Factor Info

ID 189886
Size 629 digits / 2088 bits
Status composite
Value 21086281868935546131348277472387008176565463147409079767461402933927286848541594764186041153114741119065109449511414920962068210034966455253680735695419134166729473055266155384026923682450025293625951614760031552035620603369324709012015815039828965944343402117291899874151515306868061146210183439129266302113069690776777202555397549218434768571356768680660887056824978150826087333143082971899532214588391205765144445211210979066215254839022606827560291167418002383126431172375367263132528191483369407991441925834962973648890652037524923294900254677220038472825906486776251127837517194200975027108537008037548925290412672375750771

Factorizations

Primary (ID: 189078) 12723345399854859327820637460857981322173288806792879240044067409424038891 (proven prime)
(ID: 189887) 1657290689379232478904595202089140223439379882651967135045224480785773536562526449941757902198764109692004308766926746016491220478846664840399242788152083387446460454475925085880724138674223226565719113794701455980651070468952731165706892147341428663149171327361290349207592253669000721145711269802137824493600527509666743641558886792462549900462498330488521338958681906404034298186402234964464386397905729038289074110634991604109371470758135828982207836420470044399823640067176622816289180413788233318867592336433476131881515093591810759637125293755126681 (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.