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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 #1100000009057948208 1,846 digits created 2026-08-08

Value

1193174847681331559550717040776330058178369132717319499135848306467983349632178912945134304792439728701366480904282621460310930744503971995015049513460884747429713947453045515094412903438632313085395248058955729295678704269433590371550362303301829111819995816101392210491867018254929943886267263213539572582683254740292023905953980625075593832881473936383727922360706709763439260799437189777233622611902704685117104189601311138751502063864867191628359682159075504879800120203680339853380710398983657760425521292127366980015843470600052879072769817251289835565792270568689318022903907863613935667157841177145690394061561596702674974170776317279178983254086425710647604483146207027903082256333408696465862819803275813128912772732086968174646938918939244090391639556020576978126250000313302797215575403178217391783476768319310991813639081739451479354586079596940304850561782187515749426515143004781789494332958295800699811836764080092529531223510688094140246312309474494991573832538468502305441198590314640645259771234661977145112993242051383790306708068079794680821960625519851052385402628120168773747565768259882784084565632194367264496678155807789722547384550190996422259782839172988009614903383884273176402059350878012278473648574392399772124922058091447896574934994250140258935886317463109536851735777504365411122888443901853604871226747730512552728886958427421417991844028519847772295741442547953469512392451748690591895046491020347890681328658588382187570453571432655201625633327669904310217565351713819229745214807506425109351863174115468546919523670716360081698661624567367384369869093002258763654580621415757569830830206013346834743395891421518652272985667261583831928668311867606415499943245286832709271116391027611988042659929931023022940466785582145991218795297501965332238449622876330424702651472254592575696869214794674817586040406811
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 43 of the certificate chain of a 2,454-digit prime (186 intermediate primes).

Certified number2,454-digit prime
Certificatedownload
Certificate chainshow step 43 of 186

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009057948208 --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":1100000009057948208},"decimal":true,"detail":2}}'