Factor Info

ID 178573
Size 861 digits / 2859 bits
Status composite
Value 251600028156962201354598953354542060857480536743958610971192531198181173282585026013341678992302330653135922207540499620829920708208717260754960193233543309512753224631800951671638716436200494580934178168342309253637782202768930142888390781509178294481579318173333785651075396364505307364494889106233167183043567476061408773251156021612192123062782022861791663964401632950984855062296205174698531506370964241822611579905924833764087985013149688472649968867925582140307632396092312101409615657824150401843487351849030410276270025253525051747225163883097193040596768460576057014323736234717954415591505024693387741820136675053559351027836903930366431243102419174025045128302133441457197401495463953926380745325306835815534627625016249443781392670642985734259179017447588863069781601389495420894403373674054040106288950906373994596426354290766764040977505975829377

Factorizations

Primary (ID: 16431) 442186171761555778273239995709586746484098102327396108135444422984734682149 (proven prime)
(ID: 178574) 568991172099870320131470535256403698645568149179165084059056637680832961756054134440555021752454607727605128283477846874154150145977182249323609430721095541013115071865749915183793938206517881451087842259940632922813669032006322082894115061116464573244319491498013823617023102901997280548844783798520934948972804769725659379582201287862544728794374973178502042400275606976604262160043544775375939519564911307938503158965760430566565153235971535008788750848807922673094764156393808480255531795141759137714539415267129518589714082672649214147481782184915622782126248722981767334945641033662951025784072730155343362702320255412571137424593625747440491021101684662163418911136940544678235719871280768077789395500479275531117179249498684157561543200689048948285698638068779162174666092342573 (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.