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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000009075740057 1,845 digits created 2026-08-11

Value

909431371501979857525057080006666262196902232502765274839654872469073802708834642292372983459311088421688546166572210739041816160215523862356458426908077104354709177658492890789576180527078287323470060233822346471770453509856395097513461413571195360570156169745320362942092079256678735739981628038648256306479001574585831414398911530153496742852105930916517638740441419290939498567517684238749269937161296658716039749571235809392456067809050663643710327819437046478301569530184893466790460839023012504568650342455645158069643417520307881268127342796569562787513527550498947354963602648719535034678673490952639876707561913095342050168758226562223226285964467398454014206125816363865302869082896125544018407709261903461089709629136675949942698051378758562963464341349785065180017628881705817954341795128215576336421793989490745307390738073379412419459737054795563863068849302780223359425344890333165357017724135148490149061163661845718053025829095848574400902143635024967947169748211254384617537929910684013253825837575906155325567152640245660453838529049983654476480704395299307218217929750974806116788131959377653071152768993148947360690524512527285795281187949660541627462811378574029850901077591076785666613770455340095635828213885918819391165010392796486754836819202940847332605190280644825366163865283254891981417467344365393989317426451075834890455750582073708303347895116470959854032401118195160967610005701537443989970424784637802484494957923963847869920727190842118140037077402719007744224759288380070988519215556575002359899570417706439305653210500423123252495893609033897460455220317366187478193075751632176130472386835666999118905087892179032514750211078580218907335790294455842068818144374319582339593636135473539709405243042875264116302443826581807439417114842012122589170949255817048558769226125056709565783075295411286177592510229
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 25 of the certificate chain of a 2,131-digit prime (159 intermediate primes).

Certified number2,131-digit prime
Certificatedownload
Certificate chainshow step 25 of 159

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009075740057 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009075740057},"decimal":true,"detail":2}}'