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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 #1100000009043400415 1,212 digits created 2026-08-03

Value

216859877505443385923469612719328579996487649062490645077249998778896989004129075404151781606867683724030336623912285115195933034449011573171029159172143330308631014331007521751681585067976609142564131651142179697582610474450752022900015391933305017751857550474322822978140855508309394044489535751701990682089603743660312047706072452117685246288058272158282634366209069668547942815854394053872943969857841521993416943193228880239444613110386039334518604595101161107111774771701144907492137989192985142151487426295982366887615453008790279283904632470724825317174351141131115622351719212466615183804839566740406735224321535238008479837131654227017543017840200468097891102410255596196855317887634773140397660269003895716269811096507001416642190601517925073567689265771689172374641146759948488690086449158307359160059193011764154394281258923832268377018357773617425054349728618079686727935871108226898799051013253769353965979566109530702814078522642248382998701362523327934139403400876420946240528470827149263636719676545173617632858502141859173376974899518492962868483783044476520437284986779051741043176622145846055556587984323531900040289054583845456368577939424770712904246435368584890262209734696790716648292973
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 14 of the certificate chain of a 1,359-digit prime (108 intermediate primes).

Certified number1,359-digit prime
Certificatedownload
Certificate chainshow step 14 of 108

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009043400415 --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":1100000009043400415},"decimal":true,"detail":2}}'