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 #1100000009008085008 1,284 digits created 2026-07-27

Value

805580216094104281395846968269283154390792819663360825540933832697227406562887145394195536785374137152841057181474283924393358212578475911961892907040860753319436658241770056363342087679677556225154051743819988702668619705893705055809791379970272535077623635653559332207673449043086587342006166287309915421509317248543591985315981118472344773119319150969450190204717934712040628053392657130310623724285700211423984472207687256184987491684254426130597248679513805652627591921178148517330246422522407239559832416840604838211915850702407551028875592128657504013847846079381607671575278369361838235126520232775982046607472313209307309065309502172213357956491398168949208552149710442118036658885075331723680454985610077486851723767134651698078924333370147326967051619848380656076133457351311220798895065333815524121104878320711673263066770036750354296746364293140312552049792343560330533262240694480824007331432200197584432619544467205274053125261232284530064679210681804062116688617014099511338523171407539378910743500694979507484833081000689339722927457858736551719122873020879699450926554221196614964966953799572727442465930370739063091753219620791468565122049998600398445251364430509188283458970029900312641705121357288758182352622828125833878178119196178386118845082819461822509765979
term 4235^354+354
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Is factor of

Primality

Primality certificateproven prime

Proven by a stored certificate (1,284 digits).

Certificatedownload
Certificate chainshow steps
Uploaded byA.C.

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009008085008 --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":1100000009008085008},"decimal":true,"detail":2}}'