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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 #1100000009055122497 2,018 digits created 2026-08-08

Value

40786859195443760676653961440735058453370428459567029646334649196640051235126990594212670061689528467144128290246355718651660691002823964274345836478048603481736964957111370451019260626867996563055490456675845121980604866135562492558365193856989170353581742047067054833740558526961922414871095497813917118231319716376167760450237278276348180811318034874716104295106688742335130774225560789208605424660788274002023554024978465319821705958290090834335253603510759775577303387976678018592352281936216153964540330954815585432318883550301703328225370189888660713379231938108860260918885826813632263651558648975325983257571752850295955818287037586414080765386584402634073259898633566562671181972032683917871403778379947244286146837732472538336426618468017193862756672301639298505825616100725391614538089556118364593608887050106464837585793859552831244139780266607222404119760288813399084202769323121922337978569878445307752494583641071109825602193152418432439466368973886829315852189195597442470129467355980788980431191995528000987893617898852303468895099840453272298277518933608099094816840614893989752546071613500189213183400614477901094866494646051183235484288392340466560517974074232208920499615057539850441803980822797061308977584517061987989780821691041102074086751811814819841699557173522976084678995101866114692598386477858528569757733606295065447014663027234773294394294191164409557436325173539146912889445980698423185759702751513630546328608980981329523397757209034311378243950123043183065870994733315369081831074334974277428112771993511504234080998643226938686773491633498151510545149575183768079073750467002262116946511935312118483637273022606029821222645032252523434944432615939030449742652323057946582688982419713806165538244436424564764668033634088397299410861886083950199131237546318178284039875940600733282876129524394277500354845313682365196418276433481532244539382232586742071233429466558623576769112147851438798262623086251826777064853712111302809136537235588320278956090635243671747578707822985220626571
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 37 of the certificate chain of a 2,419-digit prime (185 intermediate primes).

Certified number2,419-digit prime
Certificatedownload
Certificate chainshow step 37 of 185

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009055122497 --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":1100000009055122497},"decimal":true,"detail":2}}'