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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 #1100000009054058581 1,857 digits created 2026-08-07

Value

963883257631522949328591771890626598228447516834472396871837517226428511212704436661938270857689565135245225679279789501246179333977546495600957884594475450417431173355955486590974010669252325409986845353346543627381743094477868342228770809356536616859742454182750987360708315926212333153513249708745041346443610099045052063678010377269423980497197938947680327139008730871247151854736065997367759639504875452843840276333757934812863973689087026831969009363611079773694050764272136186598989037932035674144576506505647097370105336612496956404093593826051219930906912940316049255938175034807638332677461733836056810965041529001282241995910120965979152870455122107757100546139914967136304964812992102759510676162737010362138097988739955314046657797523590119589496283067955998455369535341137088430247430550921461667877321794091411326224156933037639546723646037282132209385805969353217899179909523379434941696175058428557200592085352298175254797524228237851555236556948248345306383269303367402056934807510882183205454083340199139513640013165124367675116527816658616439619869369755414455205349541280815466319033060264392390813406497003574314002604732555246386834498240590928776972430746169981926745017532983879191161512180686536357288270795572857214311705979086356154459147330541986085483861078175348864467003381313856088955708679425140440820105352405038293606559309570048682961623460798515838087125125820460774686404499714609850508361583761710368363246408409189777243715942503103251643258890704661576175294088095785162428852559568498810150329552975681218270489761603259392684168409450368513246994301150275734158150733879098035238716686527956742201191391513313952815244134891935314035805701823660838424284220756632585650583617122819974100157454189278443995738860333933807308096195727501857555613282035873864025435940035684978776652682296974753392686471734716816581
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 44 of the certificate chain of a 2,411-digit prime (182 intermediate primes).

Certified number2,411-digit prime
Certificatedownload
Certificate chainshow step 44 of 182

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009054058581 --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":1100000009054058581},"decimal":true,"detail":2}}'