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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 #1100000009105165562 2,032 digits created 2026-08-24

Value

2164940711137904867820776640622391637549038659360858327092347218136750521840631289893714350179736702422244898651309598003049763845980595096221046988706290561184654628945996959647974984639335695310255603051583821679248797299421878637189331021088375116520710245720178641223962076807689175531627058659592761628102918193807735676045349435063936850636860712946146121127206490126594083355439611622014866560546739743989771027222293282942054756555957539138739225759990997668505001780792871483276968986641922211817991062602544599071789465000644223744836533549718966792525561974596459174895746394320427184667366337398911911650030627459776711837848834380716789446929546795878574507238038297138099286362897159526582271517188776758200594166255737013721875440951815121984183548984293283016091764471447777076956397511356845536921109954617731710725517819923965810875854177616216971842246069270940346513854324611080573672003631141719695329186929162665895225457293390926725490871682558859067898419440856324435175635078525367366071249668402383681368664229936651030907822795717554075348499918413656577917983427242345316118097969218648309055459509749922858124288371643087886590921470999787097698437366332766443848246888901605171345586332457215286817143276679999118187971363406378643060404684613762135852281110002931507311362069384235279432079121900222437826951360908033016691614003595777978464539936163552678300166556150024975322466754014197656469461617356070078846943096340925136901131153808165065784094733489155004324737148931480839135677347114257121737333433151775666598963834053167514855575781669321336704832584722134531083759273327756987173602733164854868481112135364088203419937626195246287978955930671511810524814366751361342198634536693426821093223029932357178273911132749679269651049609738646957682618284785855390789120288766141597137114257970406468503158116153455317001310898583368356650679261017363588897158286222608800187807791692358188104637944178654777219434643508989027257258721892849240597055503842599673445123495450615798476628082857449
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 65 of the certificate chain of a 2,991-digit prime (198 intermediate primes).

Certified number2,991-digit prime
Certificatedownload
Certificate chainshow step 65 of 198

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009105165562 --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":1100000009105165562},"decimal":true,"detail":2}}'