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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 #1100000009015013822 1,132 digits created 2026-07-29

Value

1878917027334156846685355439486884845029265464551738858337228044053999940538112562105257345918711334373612822294410276899630564432181025768916813996305643944389565343834868282316768108658770817067473166661156560990261635452532211520511847737564335661977584327243988319589051886722334116206902621893695302021342728245459134590790179813411859478829547281110869653018570799199960910239152537487160333510912642930179939836592683976203085340439244627109230094840966228909482284573145596415750784759703921788787169709885484540610591055935439171756198113920804845529152956102124523198833777731628918841570797693744426001153337907276065859790519258072682327054519381944113258506134550207729743496614541137297174929732634720808973074809926357734530348241631427184518110948412973034991506876232038519257962172837763930136150137383353872834523557704045719630778987752216458917409095790913125095012278945690499558706571245526995051789168719716817312059766375207431637463007155708342357864326359849834145686324506518870016999065656416806472376460769056548084468969430724602356389936178275813137795716512378131558389484018594623410803791447612073
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 115 of the certificate chain of a 2,702-digit prime (196 intermediate primes).

Certified number2,702-digit prime
Certificatedownload
Certificate chainshow step 115 of 196

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009015013822 --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":1100000009015013822},"decimal":true,"detail":2}}'