Factor Info

ID 153425
Size 719 digits / 2387 bits
Status composite
Value 21299380974304643323147014566738974064718025748211486553811480443713877522067381041667773713272381240275371967966975216928760739780968705850640829102131205666009741329092520011643937528830330911607628064003590959361588569183252293961773327211342556609409385223232285962580243876960251886690430724240266842114284354259324657224362133709543804049815412972418140738707752687511865217718984784401957359997077983198615520492933054321511278026363387063994300145427916559497677271692383541207139097975402476312512749789909268207100179535205145413944114579460467333403192652576453002620644729162139760838775476760893364221489874482674376511390013158522168267109634253104201117027596286796416212893717175307796544614893590386821

Factorizations

Primary (ID: 186363) 490803779684117510489050130363595481 (proven prime)
(ID: 187517) 43396937546024963361807424611442794012623117492577018984091621448865617228654859460733426224538864385469779700459066370282715619858537948904160591026323324586222739714035679229590847695106738565494333204002675880981476284448415255774532641181809408696002872017951569248424237532682825530543633785723750383020849665397278286515533688158653738076025043885848606045603761088384299886688707272021852134228015478420555584659490256917051673094988488168090655672842064808939244572959699516536086456309371491356406131050663581541923741692539869069146036773707757667730125464673280863937463478556553431955887322292816013134823504816364576293166781576224757212166556522281340012812647121504141 (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.