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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 #1100000009042724555 1,154 digits created 2026-08-03

Value

38684526363566735806219818003224233440375019403807310501363412938496296312271508740502041806137210705583377598827503665464687946693043751955952054653254394867308958597569358671752612795302616986422759153447630484504193876241568609339480133649852697610260816405230456507036455780497309728094900265536572256305627407404116312138662610298770275785388217340351180627396679019285592041099163635372604192116743804909260146552341827556641219495979390884951676644311170143630890959228101234101030792005923313030363683968246140122286095445378170574164327924362269209836563964780045780737839192264666353503043043798472887600642305054112307663345632380610200485007116368065411637898492440069615882953559650566962689611889938036993059418380842364144646801774903161307464533253560141619074831961672550675050890008467876334715288525193319094224646733643496953630657948285847176013411740954580846815825449191425863823927161558341900189114854682546799885885258919076614896711246468454125749934504300530536898010030481301819920794959575810909500815086081010531501756492657627185712370561987104015545507623092517466469363480064298899733001471839134988209064883712827131499
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 15 of the certificate chain of a 1,332-digit prime (107 intermediate primes).

Certified number1,332-digit prime
Certificatedownload
Certificate chainshow step 15 of 107

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009042724555 --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":1100000009042724555},"decimal":true,"detail":2}}'