Factor Info

ID 51831
Size 562 digits / 1865 bits
Status composite
Value 1578156117317905782862657582572774935260005553747324633862333118024284291143476492692560401724370460780927499220760471324808642539179733370133743555397679074263975124735947767325250318246041973829038898485556270707261791760782829489829576689679202116987174236085707769383550269678551897899229354922677724822401343057499206470516631142107854335072038220606877014245945325284901970256036617379768411123804276329062943051811148490740279150968926341063536842493960898410451408607734960828126153689067338010945121059606057396764435651698008618783901822765019963941361

Factorizations

Primary (ID: 50227) 9768997162071483134919121 (proven prime)
(ID: 51832) 161547402577324842106284267883451882662675172538359078075909856492948219621937685423662623871939041853476983059063794176939309185485807745191931288983312870128791134642667151271707152502332294801208531053175242675954717253808693207487829361877908578901427670880693232762167392164156619220147168434673885850313454500941603326447661708409512894295508733449477833611927067983109049423014348175480336082272207055958317809375183165692341661178841557830047852918648315095041683601881357103536587015060142717347763056481239019842633090338129441 (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.