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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 #1100000009068980621 2,252 digits created 2026-08-10

Value

22356608012156257134753786403063005316751469289770532993604230921130662181425265284196887084248594331302193373388762480146403668059892420010839803218236319668945797976886935995464370377095231266545127855266917753529131084364619234410996352435758272685322954210709566182028641305789340698238710331359704097338575050299141195850743643560170677275846249165857237318758023585936450065663154774344414602201506001889042969153318790017071372073070408218578515939669215245418344201216848349122394930659078184083224524071682798967579656624082261366054328156715658814491469326739422442514924926608213020792189749465775737564951227214597199530472522106795822856665345874288199972558623079560740861052842403306941810130242243664708805135919253039112691047604679004214474120695457226793607502831993389750270660577521498516923067215185162841797994594509251697303697743009436555613173745726973897121371413963251648426139595217845127371230814504608759731083602026508865405196877468493749414344743556692851122534660586554719653933291650504267218156606775817130614795540577526101878490001798082783463186401142530975207702102497407061472349619510143901462189181865906823653444820787946089514523177576533491625516221915453795176080059771922876529865033711897860363684599603154680860378316347720195571152580013447970590442668120925951886060463992264691758286017689914828508350372770690064908950369742178295790620473415001261085936981088993980551072789170081142811145707843968767264333874617713323408321051896912733934736413070356129464869997341363261077490476251882241292373249377602361894857569607160338355998581016820323531259185263048120546296199567671317987913966923769705924697696086780925306397433292830979167919845286262094305464217863839288673375188497383129731689677314619660051190788181318207722200311833288565714814928139984483799666443283384569739437660120812061777298191270727233914164626315845982117692179677478394301165944118382909821633880894100404835238808048336330297904234106730780638207206291661394675100817550565627575028091708682469316756788609252393490134592923724120397641392701262446784399030722136438410169787325635844248960562663154942072928885439400378468733222109899234839833272549566710438830998010646331655770105284244796015048166428090044369
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 28 of the certificate chain of a 2,640-digit prime (196 intermediate primes).

Certified number2,640-digit prime
Certificatedownload
Certificate chainshow step 28 of 196

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009068980621 --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":1100000009068980621},"decimal":true,"detail":2}}'