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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 #1100000009122750628 2,033 digits created 2026-08-30

Value

11218666904802777306130908353266795637664515742382165806957707764236713254697725287579072067940331642146099728357949873812870414171901971963357647590666614209979877105258810371819807309587235189201640991826198189747205972310210033822190314793177758421460356655369470126600042114379007565179427099664677928882287960193610382711668136087165692824398798501345084738513184843967630842473201411976548531996704214038424565183299017002247581718281680542477380850208447821509009556193218970325070461307590894962169128892958758807295545921704794169492695898338802427291461324612422983045741503949430164769075125059797607207267501467683702873638804102895535324750833265699078961924395255800289023660370403696279653238901953385842188247456767146997597683768512738173294054618085637434175990193115549394076115429837612630587124638839059112289679730144144273152665851710781338719933844900755974257985133118538822929792515336637784606760041571951950100512344303149235653899456803723555884527269825378052606650470209450895611496367117107753674714330672475678519497046422985566390775314101727718991942354046689059934630054003783742912007536970228877358567060088499237381782229865602722293305357747083527298381570110749764460831585424753098083170334208121141454189021411076620213078855744867425300213506712133098701019876252412558712051673695033960407878656179288173691234357552297732917779638087429440490006766326282744369482497635620628977312497910805191958018672513751355889905943994657304523566577817240955256382273755770697654636564726151929559656930016879581347573743929245909654227425172950928478147953650513765813368854739152934379360384537044857049758946740239938149900033520442845446060077006117117484040673298487360186192319133456156231810489157559168243101515344029183140466440099105336506552249811159422779710916177612825906779800623538857836422563670425841236008517871551620415552130216947374715333800476442970729031675765688521368648427138924852900158806421921223223804821437081964884261239216540691577038435013287290015449301699533911
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 23 of the certificate chain of a 2,256-digit prime (240 intermediate primes).

Certified number2,256-digit prime
Certificatedownload
Certificate chainshow step 23 of 240

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009122750628 --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":1100000009122750628},"decimal":true,"detail":2}}'