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 #1100000009055018813 898 digits created 2026-08-08

Value

8478461634876509044855966168336205734983902546856004373060440740019100808765914484825411060446062133087488063984965764857259719817517770634871330226168038195016291036311427503802152386224364651439344411633241803354285508882963449385228697042524969844594723196120527295412658715925342623083884916532193003736559978808783901170208973762895116886995198691806557700346610121516704757490240101701213371838467934683762920444027893025238699425083487404300130807119740318227190909023205984297198270939252750473917128792372083502263801015105963381263812899460726052470945297024342208615332859810919454578230013776527459459199231675110186122745853751872260924322707899762573714765752871937718900403389515411477517594255572561032314373347504963862904988580234425432466289828911529288818221011504325274210914341709596177655809677082901732371912976988999132107377830603688769535401140714231374651674240875127177
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 101 of the certificate chain of a 2,223-digit prime (167 intermediate primes).

Certified number2,223-digit prime
Certificatedownload
Certificate chainshow step 101 of 167

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055018813 --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":1100000009055018813},"decimal":true,"detail":2}}'