factordbrpc · fdb
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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 #1100000009028186940 697 digits created 2026-07-31

Value

1304569235878391542935552454229096874015806104876151822318395571452368523347716420236027594149803995709297668793843502527439486123066271232096285956360463669140648026504528284055606893075221092464923213748782521099385570766886476220167555046805964143605499612547782172907522791047366009293445742485292804749668015188638294294112690398970037972589573652724157197034210193681430417213487555205622327621221566832995195959021259723852613894641455782045174803191699498797719616114009330966837365377801638613207887649874877717656373513705323732603286812493459697399784738983279085466560981083920002667940107807640432467699259969257892905554440574025893894862919261686589715388544929279533666624283533321
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 42 of the certificate chain of a 1,198-digit prime (104 intermediate primes).

Certified number1,198-digit prime
Certificatedownload
Certificate chainshow step 42 of 104

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009028186940 --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":1100000009028186940},"decimal":true,"detail":2}}'